Was M0 a Dutch person that M2 and M3 employed and M4 , M5 , and M6 employed
SELECT count(*) WHERE {
M0 a ns:people.person .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M5 .
M0 ns:people.person.employment_history/ns:business.employment_tenure.company M6 .
M0 ns:people.person.nationality ns:m.059j2
}