Were M1 and M2 founded by M0 's employer 's founder
SELECT count(*) WHERE {
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
M1 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x0
}