ASK WHERE { <http://dbpedia.org/resource/Fox> <http://dbpedia.org/ontology/phylum> <http://dbpedia.org/resource/Chordate> }
Does fox belong to the phylum of Chordate?
ASK WHERE { resource:Fox property:phylum resource:Chordate }
Yes
[Yes], Chordate is the phylum of Fox.
[Yes] Chordate is phylum's family tree.