With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Seiko has only ever sold toys.
text_B: , more commonly known simply as Seiko -LRB- -LSB- ˈseɪkoʊ -RSB- -RRB- , is a Japanese holding company that holds subsidiaries which manufactures and sells watches , clocks , electronic devices , semiconductors , jewelries , and optical products .. holding company. holding company. jewelries. Jewellery. optical products. optics
related.