Was a costume designer that was employed by M3 and founded a company M1
SELECT count(*) WHERE {
?x0 a ns:business.employer .
M1 a ns:film.film_costumer_designer .
M1 ns:organization.organization_founder.organizations_founded ?x0 .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company M3
}