Did M2 employ a British spouse of M1
SELECT count(*) WHERE {
?x0 ns:people.person.nationality ns:m.07ssc .
?x0 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 .
FILTER ( ?x0 != M1 ) .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}