Were M1 and M3 acquired by a employer of M0 's parent 's employee and acquired by M2
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x2 .
?x2 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M0 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
M1 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2 .
M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company ?x0 .
M3 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2
}