Was a American editor of M2 , M3 , M4 , and M5 a person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.editor.film M4 .
?x0 ns:film.editor.film M5 .
?x0 ns:people.person.nationality ns:m.09c7w0
}