Were M2 and M4 influenced by M3 and influenced by a film editor whose sibling played M1
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
?x1 ns:film.actor.film/ns:film.performance.character M1 .
FILTER ( ?x0 != ?x1 ) .
M2 ns:influence.influence_node.influenced_by ?x0 .
M2 ns:influence.influence_node.influenced_by M3 .
M4 ns:influence.influence_node.influenced_by ?x0 .
M4 ns:influence.influence_node.influenced_by M3
}