question: Was a male person employed by M2 and employed by M3 M0
query: SELECT count(*) WHERE {
  M0 a ns:people.person .
  M0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  M0 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  M0 ns:people.person.gender ns:m.05zppz
  }