Was a company that M5 , M6 , and M7 were employed by and M2 , M3 , and M4 founded M0
SELECT count(*) WHERE {
M0 a ns:business.employer .
M0 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
M0 ns:business.employer.employees/ns:business.employment_tenure.person M6 .
M0 ns:business.employer.employees/ns:business.employment_tenure.person M7 .
M0 ns:organization.organization.founders M2 .
M0 ns:organization.organization.founders M3 .
M0 ns:organization.organization.founders M4
}