Were M3 and M4 founded by a film producer whose spouse executive produced M2 and founded by M0 's executive producer
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x1 a ns:film.producer .
?x1 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x2 .
?x2 ns:film.producer.films_executive_produced M2 .
FILTER ( ?x1 != ?x2 ) .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x1 .
M4 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders ?x1
}