what organization leader has a gender of females and has parents including nixon?
Entity
m.041ch7
Tricia Nixon Cox
class entity entity
business.board_member m.06c97 m.02zsn
business.board_member event.public_speaker people.gender
Organization leader nixon females
none none none
people.person.parents people.person.gender
Parents Gender
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :business.board_member . 
VALUES ?x1 { :m.06c97 } 
VALUES ?x2 { :m.02zsn } 
?x0 :people.person.parents ?x1 . 
?x0 :people.person.gender ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x1 != ?x2  )
}
}
(AND business.board_member (AND (JOIN people.person.parents m.06c97) (JOIN people.person.gender m.02zsn)))