What is {member of} of {Yuri Lotman} that is {start time} is {1977-1-1} ?
Yuri Lotman joined what in 1977?
What was Yuri Lotman a member of starting 1977?
SELECT ?p WHERE { FILTER ( CONTAINS ( YEAR ( ?j ) , '1977' ) ) . ?i property:member_of ?p . resource:Yuri_Lotman property:member_of ?i . ?i property:start_time ?j }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q360084> .
?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> <1977-1-1>
} 

SELECT ?obj WHERE { wd:Q360084 p:P463 ?s . ?s ps:P463 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1977')) }