Were M2 and M3 employed by a Mexican film editor 's child 's sibling 's country of nationality
SELECT count(*) WHERE {
?x0 ^ns:people.person.nationality ?x1 .
?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 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x3 .
?x3 a ns:film.editor .
?x3 ns:people.person.nationality ns:m.0b90_r .
FILTER ( ?x1 != ?x2 ) .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M3 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
}