What was a British Mexican person 's employer
SELECT DISTINCT ?x0 WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 a ns:people.person .
?x1 ns:people.person.nationality ns:m.07ssc .
?x1 ns:people.person.nationality ns:m.0b90_r
}