Were M1 and M3 founded by M0 's founder 's employer 's employee and founder and founded by M2
SELECT count(*) WHERE {
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 ns:organization.organization_founder.organizations_founded M0 .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders M2
}