What is {owned by} of {World Trade Center} that is {end time} is {2001-7-0} ?
What was the activity of World Trade Center at 2000-7-01?
What was owned by world trade center at the period of 2000-7-01?
SELECT ?t WHERE { FILTER ( CONTAINS ( YEAR ( ?v ) , '2001' ) ) . ?w property:end_time ?v . ?w property:owned_by ?t . resource:World_Trade_Center property:owned_by ?w }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q11235> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P127> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P582> <2001-7-0>
} 

SELECT ?obj WHERE { wd:Q11235 p:P127 ?s . ?s ps:P127 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'2001')) }