Did M3 and M4 marry a cinematographer influenced by M1 and M2
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
FILTER ( M3 != ?x0 ) .
FILTER ( M4 != ?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 ?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 ?x0
}