Were M1 , M3 , M4 , M5 , and M6 founded by a person and founded by M2
SELECT count(*) WHERE {
?x0 a ns:people.person .
M1 ns:organization.organization.founders ?x0 .
M1 ns:organization.organization.founders M2 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders M2 .
M4 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders M2 .
M5 ns:organization.organization.founders ?x0 .
M5 ns:organization.organization.founders M2 .
M6 ns:organization.organization.founders ?x0 .
M6 ns:organization.organization.founders M2
}