IAB code

http://www.wikidata.org/prop/direct/P5250

Used as a Predicate in:

Schema Name	Schema Link
city	https://www.wikidata.org/wiki/EntitySchema:E100
software license	https://www.wikidata.org/wiki/EntitySchema:E110

Used as an Object in:

Schema Name	Schema Link
city	https://www.wikidata.org/wiki/EntitySchema:E100