Did a screenwriter marry M4 's employee and marry M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x1 .
?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M1 .
?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M2 .
?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M3 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
FILTER ( ?x0 != ?x1 ) .
FILTER ( ?x0 != M1 ) .
FILTER ( ?x0 != M2 ) .
FILTER ( ?x0 != M3 )
}