Did M0 influence and marry M1
SELECT count(*) WHERE {
FILTER ( M0 != M1 ) .
M0 ns:influence.influence_node.influenced M1 .
M0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M1
}