ASK WHERE { <http://dbpedia.org/resource/Geneva> <http://dbpedia.org/property/mayor> <http://dbpedia.org/resource/Esther_Alder> }
Is Esther Alder the mayor of Geneva?
ASK WHERE { resource:Geneva property:mayor resource:Esther_Alder }
Yes
[Yes], Esther Alder is the mayor of Geneva.
[Yes] Esther Alder is Geneva's mayor.