Were M1 , M2 , M3 , M4 , M5 , and M6 founded by a film 's editor and writer
SELECT count(*) WHERE {
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.writer.film ?x1 .
?x1 a ns:film.film .
M1 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders ?x0 .
M5 ns:organization.organization.founders ?x0 .
M6 ns:organization.organization.founders ?x0
}