With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Abraham Lincoln engaged in a formal and public discussion with Stephen A. Douglas.
text_B: -LRB- Polish  : -RRB- -LRB- also known as Tyra -RRB- is a 13 km long creek in Frydek-Mistek District , Moravian-Silesian Region , Czech Republic , in the historical region of Cieszyn Silesia .. Czech Republic. Czech Republic. Polish. Polish language. creek. stream. Frydek-Mistek District. Frydek-Mistek District. Moravian-Silesian Region. Moravian-Silesian Region. Cieszyn Silesia. Cieszyn Silesia. Tyra. Tyra ( Trinec ). It is the left tributary of the Olza River , to which it enters in Trinec .. Olza River. Olza River. Trinec. Trinec. It originates in the Moravian-Silesian Beskids in the elevation of 835 m and flows generally northward through the villages of Tyra and Oldrichovice .. Moravian-Silesian Beskids. Moravian-Silesian Beskids. Tyra. Tyra ( Trinec ). Oldrichovice. Oldrichovice ( Trinec ). Tyrka also flows through the territory of the Trinec Iron and Steel Works before joining Olza .. Trinec. Trinec. Trinec Iron and Steel Works. Trinec Iron and Steel Works
not_related.