topic's main category

P910

Used as a Predicate in:

Schema Name	Schema Link
operating system	https://www.wikidata.org/wiki/EntitySchema:E102
Tsunami	https://www.wikidata.org/wiki/EntitySchema:E115
adminstrative district in Turkey	https://www.wikidata.org/wiki/EntitySchema:E133

Used as an Object in:

Schema Name	Schema Link
Tsunami	https://www.wikidata.org/wiki/EntitySchema:E115
adminstrative district in Turkey	https://www.wikidata.org/wiki/EntitySchema:E133