SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/ontology/child> <http://dbpedia.org/resource/Charles_Phelps_Taft_II> . ?uri <http://dbpedia.org/ontology/child> <http://dbpedia.org/resource/Robert_A._Taft> . }
Who are the parents of  Charles Phelps Taft II and Robert A. Taft?
SELECT DISTINCT ?u WHERE { ?u property:child resource:Charles_Phelps_Taft_I_I . ?u property:child resource:Robert_A._Taft . }
William Howard Taft, Helen Herron Taft
The parents whose childrens are Charles Phelps Taft II and Robert A. Taft are [William Howard Taft, Helen Herron Taft].
Parents who have Charles Phelps Taft II and Robert A. Taft as children are [William Howard Taft, Helen Herron Taft].
The office holder whose childrens are them are [William Howard Taft, Helen Herron Taft].
The office holder whose children they are [William Howard Taft, Helen Herron Taft].