What is {member of} of {Milutin Milanković} that is {start time} is {1920-2-16} ?
In the period from 1920-2-16, which movement or organisation did Milutin Milanovic join?
What movement or organisation was Milutin Milanović a member of starting from 1920-2-16?
SELECT ?w WHERE { FILTER ( CONTAINS ( YEAR ( ?g ) , '1920' ) ) . ?q property:member_of ?w . ?q property:start_time ?g . resource:Milutin_Milanković property:member_of ?q }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q89054> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P463> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1920-2-16>
} 

SELECT ?obj WHERE { wd:Q89054 p:P463 ?s . ?s ps:P463 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1920')) }