question: Was M2 founded by M3 and M4 and founded by M0 's Chinese sibling
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  ?x0 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 M0 .
  FILTER ( ?x0 != M0 ) .
  M2 ns:organization.organization.founders ?x0 .
  M2 ns:organization.organization.founders M3 .
  M2 ns:organization.organization.founders M4
  }