Did M3 marry M4 , marry a cinematographer of M1 and M2 , and marry M0 's employee
SELECT count(*) WHERE {
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
?x1 ns:film.cinematographer.film M1 .
?x1 ns:film.cinematographer.film M2 .
FILTER ( M3 != ?x0 ) .
FILTER ( M3 != ?x1 ) .
FILTER ( M3 != M4 ) .
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 .
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 ?x1 .
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 M4
}