what is the {start time} for {Matt Busby} has {member of sports team} as {Manchester City F.C.} ?
When Matt Busby began as individual from games group at Manchester City F.C.?
When Matt Busby started as member of sports team at Manchester City F.C.?
SELECT ?q WHERE { resource:Matt_Busby property:member_of_sports_team ?m . ?m property:start_time ?q . ?m property:member_of_sports_team resource:Manchester_City_F.C. }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q206237> .
?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> <http://wikidata.dbpedia.org/resource/Q50602> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q206237 p:P54 ?s . ?s ps:P54 wd:Q50602 . ?s pq:P580 ?value}