Was a screenwriter employed by M3 and M4 , employed by M5 , and employed by a country of nationality of M0 M1
SELECT count(*) WHERE {
?x0 ^ns:people.person.nationality M0 .
M1 a ns:film.writer .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company M5
}