Was a Canadian screenwriter 's parent influenced by M0 and M1 and influenced by M2
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced_by M0 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?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 .
?x1 ns:people.person.nationality ns:m.0d060g
}