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