Was M1 founded by M2 , founded by M3 , and founded by a employee of a film producer
SELECT count(*) WHERE {
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 a ns:film.producer .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M1 ns:organization.organization.founders M3
}