question: Did a spouse of a sibling of M4 's employee found M0 and found M1 , M2 , and M3
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  ?x0 ns:organization.organization_founder.organizations_founded M2 .
  ?x0 ns:organization.organization_founder.organizations_founded M3 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x1 .
  ?x1 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x2 .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M4 .
  FILTER ( ?x0 != ?x1 ) .
  FILTER ( ?x1 != ?x2 )
  }