What is {member of sports team} of {Ian Rush} that is {start time} is {1980-1-1} ?
What is { sport team member } of { Ian Rush } that is { start time } is { 1980 - 1 - 1 }?
SELECT ?obj WHERE { wd:Q219354 p:P54 ?s . ?s ps:P54 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1980')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q219354> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P54> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1980-1-1>
} 

In 1980-1-1 Ian Rush Played for what team?