What German film producer that directed and wrote M1 influenced M2 and was influenced by M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 ns:film.director.film M1 .
?x0 ns:film.writer.film M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:influence.influence_node.influenced_by M3 .
?x0 ns:people.person.nationality ns:m.0345h
}