Was a German person whose employer employed M3 a screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 a ns:people.person .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.nationality ns:m.0345h .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person M3
}