What is the birth location of the pope who canonized Agatha of Sicily?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Agatha_of_Sicily> <http://dbpedia.org/ontology/canonizedBy> ?x . ?x <http://dbpedia.org/property/birthPlace> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Pope>}
Agatha_of_Sicily