Did M2 employ a British character and employ M3
SELECT count(*) WHERE {
?x0 a ns:fictional_universe.fictional_character .
?x0 ns:people.person.nationality ns:m.07ssc .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M3
}