Was M1 a person that a company was founded by , M3 employed , and M4 was founded by
SELECT count(*) WHERE {
?x0 a ns:business.employer .
M1 a ns:people.person .
M1 ns:organization.organization_founder.organizations_founded ?x0 .
M1 ns:organization.organization_founder.organizations_founded M4 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company M3
}