Did M1 and M7 influence a costume designer , influence M2 , M3 , M4 , and M5 , and influence M6
SELECT count(*) WHERE {
?x0 a ns:film.film_costumer_designer .
M1 ns:influence.influence_node.influenced ?x0 .
M1 ns:influence.influence_node.influenced M2 .
M1 ns:influence.influence_node.influenced M3 .
M1 ns:influence.influence_node.influenced M4 .
M1 ns:influence.influence_node.influenced M5 .
M1 ns:influence.influence_node.influenced M6 .
M7 ns:influence.influence_node.influenced ?x0 .
M7 ns:influence.influence_node.influenced M2 .
M7 ns:influence.influence_node.influenced M3 .
M7 ns:influence.influence_node.influenced M4 .
M7 ns:influence.influence_node.influenced M5 .
M7 ns:influence.influence_node.influenced M6
}