With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Angell was a producer of sitcoms such as Frasier.
text_B: HLKX UAVs are Chinese UAVs developed by Guilin Hanglong -LRB- meaning Aviation Dragon -RRB- Kexun -LRB- meaning Scientific Message -RRB- Electronics Technology Co. , Ltd. -LRB- HLKX , 桂林航龙科讯电子技术有限公司 -RRB- , some of which have entered service with Chinese military , paramilitary , law enforcement and governmental agencies .. Guilin. Guilin
not_related.