What is {member of} of {Milutin Milanković} that is {start time} is {1920-2-16} ?
What movement or organisation was Milutin Milanović a member of starting from 1920-2-16?
SELECT ?obj WHERE { wd:Q89054 p:P463 ?s . ?s ps:P463 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1920')) }
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>
} 

In the period from 1920-2-16, which movement or organisation did Milutin Milanovic join?