OpenStreetMap relation ID

http://www.wikidata.org/prop/direct/P402

Used as a Predicate in:

Schema Name	Schema Link
city	https://www.wikidata.org/wiki/EntitySchema:E100
trail	https://www.wikidata.org/wiki/EntitySchema:E114
UNESCO world heritage site	https://www.wikidata.org/wiki/EntitySchema:E142
submarine communications cable	https://www.wikidata.org/wiki/EntitySchema:E147
spaceport	https://www.wikidata.org/wiki/EntitySchema:E213

Used as an Object in:

Schema Name	Schema Link
city	https://www.wikidata.org/wiki/EntitySchema:E100
UNESCO world heritage site	https://www.wikidata.org/wiki/EntitySchema:E142
submarine communications cable	https://www.wikidata.org/wiki/EntitySchema:E147
spaceport	https://www.wikidata.org/wiki/EntitySchema:E213