Question: Count the PhD students whose thesis are supervised by National Medal of Science winners?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/property/prizes> <http://dbpedia.org/resource/National_Medal_of_Science> . ?x <http://dbpedia.org/property/doctoralStudents> ?uri  . }
Answer: There are [131] doctoral students of the scientists who won the National Medal of Science award.