question: Was a American employee of M0 a male person 's sibling
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  ?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 ?x1 .
  ?x1 a ns:people.person .
  ?x1 ns:people.person.gender ns:m.05zppz .
  FILTER ( ?x0 != ?x1 )
  }