Did a film editor that wrote M1 , M2 , and M3 and wrote M4 direct M5 , M6 , and M7
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:film.director.film M5 .
?x0 ns:film.director.film M6 .
?x0 ns:film.director.film M7 .
?x0 ns:film.writer.film M1 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3 .
?x0 ns:film.writer.film M4
}