With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rihanna has sales exceeding 230 million rats worldwide.
text_B: The 1970 Austrian Grand Prix was a Formula One motor race held at Osterreichring on 16 August 1970 .. Osterreichring. Osterreichring. Formula One. Formula One. Austrian Grand Prix. Austrian Grand Prix. This was the second Austrian Grand Prix and the first Formula One race at the scenic Osterreichring , built to replace the bumpy and bland Zeltweg Airfield circuit .. Osterreichring. Osterreichring. Formula One. Formula One. Austrian Grand Prix. Austrian Grand Prix. Zeltweg Airfield. Zeltweg Air Base. The 60-lap race was won by Ferrari driver Jacky Ickx after he started from third position .. Jacky Ickx. Jacky Ickx. Ferrari. Scuderia Ferrari. His teammate Clay Regazzoni finished second and Brabham driver Rolf Stommelen came in third .. Clay Regazzoni. Clay Regazzoni. Rolf Stommelen. Rolf Stommelen. Brabham. Brabham
not_related.