Were M2 , M3 , M4 , M5 , and M6 edited , written , and directed by a person 's British sibling
SELECT count(*) WHERE {
?x0 ns:people.person.nationality ns:m.07ssc .
?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 .
FILTER ( ?x0 != ?x1 ) .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.written_by ?x0 .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.edited_by ?x0 .
M3 ns:film.film.written_by ?x0 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.edited_by ?x0 .
M4 ns:film.film.written_by ?x0 .
M5 ns:film.film.directed_by ?x0 .
M5 ns:film.film.edited_by ?x0 .
M5 ns:film.film.written_by ?x0 .
M6 ns:film.film.directed_by ?x0 .
M6 ns:film.film.edited_by ?x0 .
M6 ns:film.film.written_by ?x0
}