With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Memento is a book.
text_B: Ratna Moetoe Manikam -LRB- Perfected Spelling  : Ratna Mutu Manikam -RRB- , also known by the title Djoela Djoeli Bintang Tiga -LRB- Dance of the Three Stars ; Perfected Spelling  : Jula Juli Bintang Tiga -RRB- , is a film from the Dutch East Indies -LRB- now Indonesia -RRB- .. Perfected Spelling. Enhanced Indonesian Spelling System. Dutch East Indies. Dutch East Indies. Indonesia. Indonesia
not_related.