SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Thomas_Bryan_Martin> <http://dbpedia.org/ontology/associate> ?uri. <http://dbpedia.org/resource/Pittsburgh> <http://dbpedia.org/ontology/founder> ?uri}
Whihc associate of THomas Bryan Martin is also the founder of Pittsburgh ?
SELECT DISTINCT ?p WHERE { resource:Pittsburgh property:founder ?p . resource:Thomas_Bryan_Martin property:associate ?p }
George Washington
[George Washington] is the associate of Thomas Bryan Martin and  the founder of Pittsburgh.
[George Washington] is Thomas Brian Martin's associate and Pittsburgh's founder.
[George Washington] is the associate of the Thomas Bryan Martin and is founded Pittsburgh.
[George Washington] is a partner of Thomas Brian Martin who founded Pittsburgh.