Did M2 and M3 influence M0 's parent and marry a screenwriter
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
?x1 a ns:film.writer .
FILTER ( M2 != ?x1 ) .
FILTER ( M3 != ?x1 ) .
M2 ns:influence.influence_node.influenced ?x0 .
M2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x1 .
M3 ns:influence.influence_node.influenced ?x0 .
M3 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x1
}