ASK WHERE { <http://dbpedia.org/resource/Henri_Becquerel> <http://dbpedia.org/ontology/doctoralStudent> <http://dbpedia.org/resource/Marie_Curie> }
Was Marie Curie a doctoral student of Henri Becquerel?
ASK WHERE { resource:Henri_Becquerel property:doctoral_student resource:Marie_Curie }
Yes
[Yes], Marie Curie was a doctoral student of Henri Becquerel.
[Yes] Marie Curie was Henri Becquerel's doctoral student.
[Yes], he is the doctoral student of Henri Becquerel.
[Yes], he's a graduate student at Henri Becquerel.
[Yes], Marie Curie is  the doctoral student of the person.
[Yes] Marie Curie is the man's doctoral student.