Did M1 , M2 , M3 , and M4 acquire a parent of M0
SELECT count(*) WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M2 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M3 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M4 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0
}