question: Was M0 's employee employed by a character 's employer
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
  ?x2 a ns:fictional_universe.fictional_character
  }