who is the meaning of the name gahan which was also one of the subject of play list of english heritage blue plaques in the city of westminster ?
SELECT DISTINCT var_uri where brack_open dbr_Gahan_ attr_open surname attr_close dbp_meaning var_uri sep_dot dbr_List_of_English_Heritage_blue_plaques_in_the_City_of_Westminster dbp_subject var_uri brack_close