SELECT wikidata_code, GROUP_CONCAT(poi_ID) FROM poi WHERE wikidata_code <> '' GROUP BY wikidata_code HAVING COUNT(*) > 1 ORDER BY COUNT(*) DESC;

+---------------+----------------------+
| wikidata_code | GROUP_CONCAT(poi_ID) |
+---------------+----------------------+
| Q3889607      | 6493,13775,14759     |
| Q3934723      | 11337,11336,11345    |
| Q4011905      | 6985,6525,6977       |
| Q55354232     | 7972,10057,10140     |
| Q610004       | 12370,15843,12734    |
| Q664380       | 6648,10000,14897     |
| Q72703760     | 16457,12358,15897    |
| Q73489        | 14283,6647,14855     |
| Q917585       | 11111,11112,11113    |
| Q9182         | 6829,11915,14618     |
| Q94982        | 14859,7319,14973     |
| Q1033649      | 9581,10112           |
| Q10339        | 14599,8970           |
| Q1054748      | 15886,15765          |
| Q1054755      | 15798,6952           |
| Q1062079      | 8781,6454            |
| Q1066935      | 10149,8040           |
| Q111942       | 14422,9568           |
| Q1145261      | 6484,15656           |
| Q122476       | 8241,8283            |
| Q1280         | 6603,15996           |
| Q128202       | 14953,10184          |
| Q131148       | 12780,10205          |
| Q13145        | 14844,7312           |
| Q1324513      | 9269,13529           |
| Q1332930      | 11098,11249          |
| Q1380173      | 8297,8150            |
| Q1393382      | 15207,15774          |
| Q14943279     | 12890,12211          |
| Q1551179      | 9465,7962            |
| Q15602246     | 13476,7219           |
| Q1585931      | 13493,8101           |
| Q162965       | 15071,15266          |
| Q16596814     | 11071,8939           |
| Q16920958     | 7203,13470           |
| Q1707242      | 6503,8778            |
| Q1775124      | 6640,14852           |
| Q17798        | 14315,14651          |
| Q1787344      | 7287,14700           |
| Q1787362      | 7284,13211           |
| Q1787397      | 14600,7288           |
| Q178813       | 13469,11651          |
| Q18040        | 14286,14659          |
| Q18356        | 14637,14264          |
| Q18365        | 14644,14267          |
| Q18368        | 14643,14268          |
| Q18416884     | 10770,10661          |
| Q18755063     | 8108,7944            |
| Q1903         | 12755,16045          |
| Q1916826      | 15043,16018          |
| Q1954221      | 8154,13690           |
| Q19545320     | 15815,15915          |
| Q19833        | 15759,14215          |
| Q19840        | 7271,16180           |
| Q19846        | 7273,16300           |
| Q20008344     | 15345,8788           |
| Q20099        | 14341,14638          |
| Q20109        | 14344,14649          |
| Q20144        | 14269,14888          |
| Q201902       | 12170,6453           |
| Q20191        | 14367,14650          |
| Q20251        | 14383,14648          |
| Q2034331      | 15070,15268          |
| Q2047639      | 8348,8439            |
| Q20478        | 14890,14372          |
| Q20494        | 15028,14896          |
| Q2052064      | 6991,13238           |
| Q20559        | 14959,14886          |
| Q206927       | 7291,14331           |
| Q207070       | 15103,7294           |
| Q207161       | 14366,7295           |
| Q207185       | 7296,15104           |
| Q2077168      | 11427,11282          |
| Q21013539     | 16579,16553          |
| Q21192547     | 14489,14485          |
| Q21192550     | 10943,9563           |
| Q21552096     | 9266,9265            |
| Q21552273     | 9280,9204            |
| Q224172       | 14902,14350          |
| Q22536        | 14393,14680          |
| Q227641       | 15016,14503          |
| Q23285        | 14698,14287          |
| Q23291        | 14697,14288          |
| Q23636        | 14364,15128          |
| Q2506967      | 11857,10965          |
| Q25409844     | 15978,8305           |
| Q254139       | 14561,14455          |
| Q266604       | 14463,14544          |
| Q266794       | 14457,14554          |
| Q266941       | 14460,14550          |
| Q266975       | 14449,14547          |
| Q268067       | 14470,14257          |
| Q268995       | 14320,14471          |
| Q269476       | 14400,14473          |
| Q269516       | 14474,14404          |
| Q269823       | 14445,14482          |
| Q269831       | 14475,14970          |
| Q270032       | 14466,14560          |
| Q270189       | 14456,14571          |
| Q270320       | 14556,14979          |
| Q270328       | 14564,15015          |
| Q270492       | 14441,14526          |
| Q270548       | 14512,15014          |
| Q270613       | 14462,14527          |
| Q270782       | 14454,14506          |
| Q271152       | 14511,14451          |
| Q271236       | 14446,14517          |
| Q271264       | 14510,14965          |
| Q271358       | 14444,14528          |
| Q272777       | 7809,7211            |
| Q28001134     | 7041,7065            |
| Q2836365      | 6452,15852           |
| Q2967848      | 7825,9398            |
| Q2968191      | 14751,8829           |
| Q30022003     | 14240,14601          |
| Q30024653     | 14232,14645          |
| Q30027754     | 7297,15105           |
| Q30031546     | 14677,14978          |
| Q30159213     | 12642,12387          |
| Q3072384      | 14579,15005          |
| Q3328396      | 9366,15991           |
| Q3328410      | 7855,8145            |
| Q3361323      | 10944,10637          |
| Q3361341      | 10021,10123          |
| Q3364763      | 13187,13299          |
| Q34805        | 14994,14708          |
| Q35036        | 14995,14321          |
| Q35082        | 14340,14754          |
| Q35226        | 14718,14226          |
| Q358729       | 14696,13328          |
| Q3618782      | 8210,8211            |
| Q3623078      | 6457,8782            |
| Q3649109      | 8766,10617           |
| Q3657503      | 16428,15804          |
| Q3661559      | 10545,10546          |
| Q3662426      | 10052,11652          |
| Q3662456      | 9648,9610            |
| Q3662684      | 9850,16107           |
| Q3662864      | 9900,16111           |
| Q3672295      | 13785,8785           |
| Q3674029      | 8907,15056           |
| Q3718646      | 15404,8912           |
| Q3757702      | 6947,15767           |
| Q3757770      | 15285,9066           |
| Q3763803      | 9232,9230            |
| Q3763912      | 10238,6703           |
| Q376739       | 9080,8897            |
| Q3785099      | 14073,14180          |
| Q3819018      | 8958,6510            |
| Q3833022      | 14490,15008          |
| Q3852977      | 12205,15850          |
| Q3862288      | 15011,14572          |
| Q3867374      | 11995,12732          |
| Q3867520      | 9025,8925            |
| Q3867564      | 8074,8076            |
| Q3867567      | 14769,15922          |
| Q3867611      | 6552,8084            |
| Q3867716      | 9135,16096           |
| Q3867764      | 8009,8047            |
| Q3867831      | 9172,9173            |
| Q3867851      | 8263,8262            |
| Q3867939      | 14807,8828           |
| Q3867950      | 8251,8185            |
| Q3867963      | 9037,8790            |
| Q3867973      | 9005,9024            |
| Q3868051      | 8677,9075            |
| Q3868188      | 6479,9055            |
| Q3868253      | 8885,8886            |
| Q3868400      | 7994,7993            |
| Q3868487      | 9022,9151            |
| Q3886621      | 15832,16466          |
| Q3886642      | 15944,16441          |
| Q3889575      | 15277,16554          |
| Q3889659      | 10800,10632          |
| Q3890190      | 15264,15254          |
| Q3890261      | 15286,15287          |
| Q3890561      | 12061,14766          |
| Q3890698      | 13612,13602          |
| Q3892388      | 14518,14686          |
| Q3895382      | 15901,12182          |
| Q3895386      | 6888,7114            |
| Q3895421      | 12330,13203          |
| Q3895631      | 14591,13206          |
| Q3895646      | 13216,16177          |
| Q3895647      | 13217,14666          |
| Q3895658      | 15857,13219          |
| Q3895726      | 14083,13180          |
| Q3908055      | 12169,15388          |
| Q3936898      | 10555,10762          |
| Q3951389      | 10245,10456          |
| Q3958082      | 15762,14439          |
| Q3976010      | 11085,16219          |
| Q47467390     | 13962,15045          |
| Q49537787     | 15847,12193          |
| Q49538469     | 12147,15860          |
| Q50119        | 15133,15132          |
| Q50147        | 15140,14877          |
| Q52797722     | 7309,15107           |
| Q53112383     | 6885,15764           |
| Q54087650     | 8525,8914            |
| Q54874186     | 9058,9059            |
| Q55354006     | 7880,7879            |
| Q55354223     | 8003,8004            |
| Q55370383     | 8884,16161           |
| Q55371816     | 6831,9087            |
| Q55372377     | 14812,8944           |
| Q55375101     | 12809,9396           |
| Q55375790     | 8840,8823            |
| Q55379362     | 8237,8238            |
| Q55391578     | 9732,9733            |
| Q55673199     | 8043,8042            |
| Q55686292     | 11360,11359          |
| Q55832719     | 10842,11241          |
| Q56071        | 7293,15102           |
| Q56080        | 7300,15108           |
| Q56084        | 7304,15110           |
| Q56682579     | 6521,10846           |
| Q574879       | 13491,13490          |
| Q58844        | 14184,13273          |
| Q59271        | 15109,7302           |
| Q606494       | 7891,7856            |
| Q635414       | 13324,14116          |
| Q65934092     | 13651,15088          |
| Q66054836     | 11976,12192          |
| Q67014843     | 6822,15903           |
| Q67375422     | 10371,10370          |
| Q67375491     | 12662,12813          |
| Q67375630     | 10811,10849          |
| Q67381687     | 8588,10884           |
| Q68664084     | 8614,8601            |
| Q68664914     | 11548,11547          |
| Q69321138     | 6567,6488            |
| Q70855509     | 6710,6559            |
| Q71249877     | 11879,7143           |
| Q71253577     | 11065,11064          |
| Q73002622     | 10348,10349          |
| Q776666       | 8811,15042           |
| Q867361       | 13318,7208           |
| Q94980        | 7308,14850           |
+---------------+----------------------+