Was M2 's child influenced by M0 and M1
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced_by M0 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent M2
}