code: def pythagoras(opposite, adjacent, hypotenuse):
      """
      Returns length of a third side of a right angled triangle.
      Passing "?" will indicate the unknown side.
      """
      try:
          if opposite == str("?"):
              return "Opposite = " + str(
                  ((hypotenuse**2) - (adjacent**2)) ** 0.5
              )
          if adjacent == str("?"):
              return "Adjacent = " + str(
                  ((hypotenuse**2) - (opposite**2)) ** 0.5
              )
          if hypotenuse == str("?"):
              return "Hypotenuse = " + str(
                  ((opposite**2) + (adjacent**2)) ** 0.5
              )
          return "You already know the answer!"
      except:
          raise ValueError("invalid argument(s) were given.")
  
label_desc: Use image node_id 1 for calling a global function with example usage: pythagoras(opposite, adjacent, hypotenuse) and returns: str, unknown, unknown, unknown