Was M3 founded by a film producer , founded by a British person 's sibling , and founded by M4
SELECT count(*) WHERE {
?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.nationality ns:m.07ssc .
?x2 a ns:film.producer .
FILTER ( ?x0 != ?x1 ) .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x2 .
M3 ns:organization.organization.founders M4
}