Was M0 a person that founded M5 and was employed by M2 , M3 , and M4
SELECT count(*) WHERE {
M0 a ns:people.person .
M0 ns:organization.organization_founder.organizations_founded M5 .
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
}