Did a Canadian film producer influence M1 and M2 and influence M4 's editor and writer
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:influence.influence_node.influenced ?x1 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 ns:film.editor.film M4 .
?x1 ns:film.writer.film M4
}