Was a film producer that M1 , M2 , and M3 were influenced by and M4 and M5 were influenced by influenced by M6
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:influence.influence_node.influenced M3 .
?x0 ns:influence.influence_node.influenced M4 .
?x0 ns:influence.influence_node.influenced M5 .
?x0 ns:influence.influence_node.influenced_by M6
}