Was M0 a Italian person that influenced M2 and M3 , was influenced by M4 , and married M6
SELECT count(*) WHERE {
FILTER ( M0 != M6 ) .
M0 a ns:people.person .
M0 ns:influence.influence_node.influenced M2 .
M0 ns:influence.influence_node.influenced M3 .
M0 ns:influence.influence_node.influenced_by M4 .
M0 ns:people.person.nationality ns:m.03rjj .
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 M6
}