Did M2 and M6 employ M3 and M4 , employ M5 , and employ a Spanish person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.06mkj .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
M6 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M6 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
M6 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
M6 ns:business.employer.employees/ns:business.employment_tenure.person M5
}