Was M0 a film editor that M4 , M5 , M6 , and M7 were founded by and M2 and M3 employed
SELECT count(*) WHERE {
M0 a ns:film.editor .
M0 ns:organization.organization_founder.organizations_founded M4 .
M0 ns:organization.organization_founder.organizations_founded M5 .
M0 ns:organization.organization_founder.organizations_founded M6 .
M0 ns:organization.organization_founder.organizations_founded M7 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M3
}