text: DROP VIEW v_teacherOf CASCADE;
  CREATE OR REPLACE VIEW v_teacherOf AS 
  SELECT innerRel.x2 AS att1, innerRel.x1 AS att2
  FROM (
  SELECT ora_0.b AS x1, ora_0.a AS x2
  FROM  object_role_assertion ora_0
  WHERE ora_0.object_role=169
  ) as innerRel
  