text: SELECT 
  CASE
      WHEN A + B <= C OR B + C <= A OR C + A <= B THEN 'Not A Triangle'
      WHEN A = B AND B = C THEN 'Equilateral'
      WHEN A = B OR B = C OR C = A THEN 'Isosceles'
      ELSE 'Scalene'
  END
  FROM TRIANGLES;
  