Did M2 's country of nationality 's employee influence M0 and M1
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced M0 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 ^ns:people.person.nationality M2
}