Were M1 and M3 directed by a character and directed by M2
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.directed_by M2 .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.directed_by M2
}