what is the {point in time} for {bell hooks} has {educated at} as {Stanford University} ?
where is the {point in time} for {chime snares} who has {taught at} as {Stanford College} ?
where is the {point in time} for {bell hooks} who has {educated at} as {Stanford University} ?
SELECT ?z WHERE { ?x property:point_in_time ?z . ?x property:educated_at resource:Stanford_University . resource:bell_hooks property:educated_at ?x }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q259507> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P69> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q41506> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q259507 p:P69 ?s . ?s ps:P69 wd:Q41506 . ?s pq:P585 ?value}