question: Did a person 's female sibling 's employer acquire M0
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M0 .
  ?x1 ns:people.person.gender ns:m.02zsn .
  ?x1 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x2 .
  ?x2 a ns:people.person .
  FILTER ( ?x1 != ?x2 )
  }