question: What was a company that M1 's founder was employed by and founded
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:business.employer .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x1 ns:organization.organization_founder.organizations_founded M1
  }