Was M1 M0 's cinematographer 's Mexican parent
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film M0 .
M1 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x0 .
M1 ns:people.person.nationality ns:m.0b90_r
}