What was founded by M0 and founded by a sibling of M1 's founder and employee
SELECT DISTINCT ?x0 WHERE {
?x0 ns:organization.organization.founders ?x1 .
?x0 ns:organization.organization.founders M0 .
?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:organization.organization_founder.organizations_founded M1 .
?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
FILTER ( ?x1 != ?x2 )
}