With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Inferno (2016 film) is in the same series as The Maltese Falcon.
text_B: In applied mathematics , a bit-reversal permutation is a permutation of a sequence of n items , where n = 2k is a power of two .. permutation. permutation. sequence. sequence. power of two. power of two. It is defined by indexing the elements of the sequence by the numbers from 0 to n − 1 and then reversing the binary representations of each of these numbers -LRB- padded so that each of these binary numbers has length exactly k -RRB- .. sequence. sequence. Each item is then mapped to the new position given by this reversed value .. The bit reversal permutation is an involution , so repeating the same permutation twice returns to the original ordering on the items .. permutation. permutation. involution. Involution ( mathematics )
not_related.