Was a German person influenced by a screenwriter 's sibling M1
SELECT count(*) WHERE {
?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
?x1 a ns:film.writer .
FILTER ( ?x0 != ?x1 ) .
M1 a ns:people.person .
M1 ns:influence.influence_node.influenced_by ?x0 .
M1 ns:people.person.nationality ns:m.0345h
}