Were M2 and M3 acquired by M0 's employer and acquired by M1 's child
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
?x1 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent M1 .
M2 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
M2 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x1 .
M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x1
}