Was M0 's employee 's employer M1 's employee 's country of nationality
SELECT count(*) WHERE {
?x0 ^ns:people.person.nationality ?x1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M0
}