Did M2 employ a person , employ M1 's founder , and employ a person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x1 ns:organization.organization_founder.organizations_founded M1 .
?x2 a ns:people.person .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x2
}