Did M2 employ a screenwriter whose country of nationality employed a British screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:people.person.nationality ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 a ns:film.writer .
?x2 ns:people.person.nationality ns:m.07ssc .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}