As of 2019-05-20, the Wikidata property main subject (P921) is used on 5,527,717 items.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P31 instance of 5,526,058
0.1033
P1476 title 5,434,832
0.2393
P1433 published in 5,374,559
0.2470
P577 publication date 5,364,998
0.2347
P2093 author name string 5,200,236
0.2434
P478 volume 5,108,909
0.2471
P304 page(s) 5,101,611
0.2458
P698 PubMed ID 4,637,137
0.2479
P433 issue 4,518,529
0.2314
P356 DOI 4,407,983
0.2444
P2860 cites 2,195,655
0.2056
P5875 ResearchGate publication ID 1,412,138
0.1625
P932 PMCID 1,402,488
0.1601
P50 author 1,234,880
0.1483
P407 language of work or name 884,759
0.1034
P3181 OpenCitations bibliographic resource ID 115,257
0.0204
P2888 exact match 89,918
0.0144
P495 country of origin 68,845
0.0108
P5008 on focus list of Wikimedia project 51,487
0.0092
P6216 copyright status 48,952
0.0083
P361 part of 43,680
0.0066
P275 license 38,459
0.0069
P136 genre 35,747
0.0057
P156 followed by 32,426
0.0053
P155 follows 32,257
0.0053
P859 sponsor 31,388
0.0056
P2880 NIOSHTIC-2 ID 25,627
0.0046
P18 image 24,240
0.0029
P953 full work available at 22,746
0.0041
P571 inception 22,097
0.0032
P123 publisher 21,859
0.0039
P888 JSTOR article ID 19,553
0.0035
P276 location 18,859
0.0029
P195 collection 18,760
0.0031
P170 creator 16,953
0.0028
P17 country 15,972
0.0010
P180 depicts 15,002
0.0027
P856 official website 14,905
0.0023
P4510 describes a project that uses 14,523
0.0026
P580 start time 14,521
0.0025
P345 IMDb ID 13,795
0.0023
P582 end time 13,395
0.0024
P364 original language of film or TV show 13,241
0.0023
P3098 ClinicalTrials.gov Identifier 13,217
0.0024
P2048 height 12,645
0.0021
P2049 width 12,454
0.0021
P1132 number of participants 12,285
0.0022
P217 inventory number 12,121
0.0020
P646 Freebase ID 12,106
0.0018
P2899 minimum age 11,655
0.0021

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P698 PubMed ID 4,637,137
0.2479
P478 volume 5,108,909
0.2471
P1433 published in 5,374,559
0.2470
P304 page(s) 5,101,611
0.2458
P356 DOI 4,407,983
0.2444
P2093 author name string 5,200,236
0.2434
P1476 title 5,434,832
0.2393
P577 publication date 5,364,998
0.2347
P433 issue 4,518,529
0.2314
P2860 cites 2,195,655
0.2056
P5875 ResearchGate publication ID 1,412,138
0.1625
P932 PMCID 1,402,488
0.1601
P50 author 1,234,880
0.1483
P407 language of work or name 884,759
0.1034
P31 instance of 5,526,058
0.1033
P3181 OpenCitations bibliographic resource ID 115,257
0.0204
P2888 exact match 89,918
0.0144
P495 country of origin 68,845
0.0108
P5008 on focus list of Wikimedia project 51,487
0.0092
P6216 copyright status 48,952
0.0083
P275 license 38,459
0.0069
P361 part of 43,680
0.0066
P136 genre 35,747
0.0057
P859 sponsor 31,388
0.0056
P156 followed by 32,426
0.0053
P155 follows 32,257
0.0053
P2880 NIOSHTIC-2 ID 25,627
0.0046
P953 full work available at 22,746
0.0041
P123 publisher 21,859
0.0039
P888 JSTOR article ID 19,553
0.0035
P571 inception 22,097
0.0032
P195 collection 18,760
0.0031
P18 image 24,240
0.0029
P276 location 18,859
0.0029
P170 creator 16,953
0.0028
P180 depicts 15,002
0.0027
P4510 describes a project that uses 14,523
0.0026
P580 start time 14,521
0.0025
P3098 ClinicalTrials.gov Identifier 13,217
0.0024
P582 end time 13,395
0.0024
P364 original language of film or TV show 13,241
0.0023
P856 official website 14,905
0.0023
P345 IMDb ID 13,795
0.0023
P1132 number of participants 12,285
0.0022
P2049 width 12,454
0.0021
P2048 height 12,645
0.0021
P2899 minimum age 11,655
0.0021
P2007 ZooBank publication ID 11,315
0.0020
P217 inventory number 12,121
0.0020
P1104 number of pages 11,295
0.0020