main subject

http://www.wikidata.org/prop/direct/P921

Used as a Predicate in:

Schema Name	Schema Link
data set	https://www.wikidata.org/wiki/EntitySchema:E112
patent	https://www.wikidata.org/wiki/EntitySchema:E138
preprint	https://www.wikidata.org/wiki/EntitySchema:E185
COVID-19 dashboards, search engines and datasets	https://www.wikidata.org/wiki/EntitySchema:E205
dataset	https://www.wikidata.org/wiki/EntitySchema:E207
SPARQL endpoint	https://www.wikidata.org/wiki/EntitySchema:E208
API endpoint	https://www.wikidata.org/wiki/EntitySchema:E209
written work	https://www.wikidata.org/wiki/EntitySchema:E35
edition of a written work	https://www.wikidata.org/wiki/EntitySchema:E36
Newspaper clippings archives	https://www.wikidata.org/wiki/EntitySchema:E94
statue	https://www.wikidata.org/wiki/EntitySchema:E99

Used as an Object in:

Schema Name	Schema Link
data set	https://www.wikidata.org/wiki/EntitySchema:E112
patent	https://www.wikidata.org/wiki/EntitySchema:E138
preprint	https://www.wikidata.org/wiki/EntitySchema:E185
COVID-19 dashboards, search engines and datasets	https://www.wikidata.org/wiki/EntitySchema:E205
dataset	https://www.wikidata.org/wiki/EntitySchema:E207
API endpoint	https://www.wikidata.org/wiki/EntitySchema:E209
written work	https://www.wikidata.org/wiki/EntitySchema:E35
edition of a written work	https://www.wikidata.org/wiki/EntitySchema:E36
Newspaper clippings archives	https://www.wikidata.org/wiki/EntitySchema:E94
statue	https://www.wikidata.org/wiki/EntitySchema:E99