question: Was M2 influenced by M3 , influenced by M4 , influenced by M0 's Mexican sibling , and influenced by M5
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  ?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:influence.influence_node.influenced_by ?x0 .
  M2 ns:influence.influence_node.influenced_by M3 .
  M2 ns:influence.influence_node.influenced_by M4 .
  M2 ns:influence.influence_node.influenced_by M5
  }