Were M1 , M2 , M3 , and M4 founded by a screenwriter 's parent
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?x1 a ns:film.writer .
M1 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders ?x0
}