Was a Canadian employee of M0 influenced by a person that influenced M3 and was influenced by M4
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 a ns:people.person .
?x1 ns:influence.influence_node.influenced M3 .
?x1 ns:influence.influence_node.influenced_by M4
}