what is the {start time} for {Annibale Carracci} has {student} as {Antonio Marziale Carracci} ?
When did Antonio Marziale Carracci become Annibale Carracci's student.
When did Annibale Carracci start teaching Antonio Marziale Carracci?
SELECT ?y WHERE { ?f property:start_time ?y . resource:Annibale_Carracci property:student ?f . ?f property:student resource:Antonio_Marziale_Carracci }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q7824> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P802> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q2624075> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q7824 p:P802 ?s . ?s ps:P802 wd:Q2624075 . ?s pq:P580 ?value}