Was M1 a British art director that M0 's employer was founded by and employed
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
M1 a ns:film.film_art_director .
M1 ns:organization.organization_founder.organizations_founded ?x0 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M1 ns:people.person.nationality ns:m.07ssc
}