code: def hits(x1, y1, x2, y2):
      "Check whether a queen positioned at (x1, y1) will hit a queen at position (x2, y2)"
      return x1 == x2 or y1 == y2 or abs(x1 - x2) == abs(y1 - y2)
  
label_desc: Use image node_id 1 for calling a global function with example usage: hits(x1, y1, x2, y2) and returns: unknown