Were M1 , M3 , and M4 produced by M2 and executive produced by a production company 's employee 's child
SELECT count(*) WHERE {
?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x1 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x2 .
?x2 a ns:film.production_company .
M1 ns:film.film.executive_produced_by ?x0 .
M1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.produced_by|ns:film.film.production_companies M2 .
M4 ns:film.film.executive_produced_by ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies M2
}