With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Simpsons series will be renewed for a 31st season.
text_B: The Square One , also known as Back to Square One and Cube 21 , is a puzzle similar to the Rubik 's Cube .. Its distinguishing feature among the numerous Rubik 's Cube variants is that it can change shape as it is twisted , due to the way it is cut , thus adding an extra level of challenge and difficulty .. The Super Square One and Square Two puzzles have been recently introduced .. The Super Square One has two additional layers that can be scrambled and solved independently of the rest of the puzzle , and the Square Two has extra cuts made to the top and bottom layer , making the edge and corner wedges the same size .
not_related.