Did M2 and M5 influence a company 's Mexican employee , influence M3 , and influence M4
SELECT count(*) WHERE {
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
?x1 a ns:business.employer .
M2 ns:influence.influence_node.influenced ?x0 .
M2 ns:influence.influence_node.influenced M3 .
M2 ns:influence.influence_node.influenced M4 .
M5 ns:influence.influence_node.influenced ?x0 .
M5 ns:influence.influence_node.influenced M3 .
M5 ns:influence.influence_node.influenced M4
}