text: /*
  Enter your query here.
  Please append a semicolon ";" at the end of the query and enter your query in a single line to avoid error.
  */
  
  select
      case
          -- need to check for 'Not A Triangle' first
          when a + b <= c or b +c <= a or a + c <= b then 'Not A Triangle'    
          when a = b and b = c then 'Equilateral'
          when a = b or b = c or a = c then 'Isosceles'
          else 'Scalene'
      END
  from triangles;