Did M4 influence a screenwriter that M1 , M2 , and M3 influenced and marry M5 and M6
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x0 ns:influence.influence_node.influenced_by M3 .
FILTER ( M4 != M5 ) .
FILTER ( M4 != M6 ) .
M4 ns:influence.influence_node.influenced ?x0 .
M4 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M5 .
M4 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M6
}