With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tennis players use tennis rackets.
text_B: Stade is a district -LRB- Landkreis -RRB- in Lower Saxony , Germany .. Stade. Stade. district. districts of Germany. Lower Saxony. Lower Saxony. Germany. Germany. It has its seat in Stade and is bounded by -LRB- from the east and clockwise -RRB- the districts of Harburg , Rotenburg and Cuxhaven , the Elbe River , and the city state of Hamburg .. Stade. Stade. Harburg. Harburg ( district ). Rotenburg. Rotenburg ( district ). Cuxhaven. Cuxhaven ( district ). Elbe. Elbe. Hamburg. Hamburg
not_related.