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