With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: New Horizons is man-made and sent to Jupiter.
text_B: Aaron Krickstein was the defending champion , but lost in the semifinals to Yannick Noah.Noah won the title , defeating Carl-Uwe Steeb 5 -- 7 , 6 -- 3 , 6 -- 4 , in the final .. Aaron Krickstein. Aaron Krickstein. Yannick Noah. Yannick Noah. Carl-Uwe Steeb. Carl-Uwe Steeb
not_related.