Question: Which family member of Luca Signorelli is a writer by profession? 

Name the family member of Luca Signorelli who is a writer by profession. 

Which of Luca Signorelli's relatives has a career in writing? 

Who is the relative of Luca Signorelli who has a career in writing?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q7031 wdt:P1038 ?answer . ?answer wdt:P106 wd:Q36180}