question: What employee and founder of M0 was employed by M1
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1
  }