With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Count Basie took his orchestra to the third-most populous city in the United States.
text_B: Dog aggression can refer generally to all canine aggression or can be used as short-hand for what is more accurately termed dog-dog aggression or dog-dog reactivity .. Dog. Dog. Dog aggression is a common dog behavior exhibited by all breeds of dogs under the right circumstances , although some breeds may , for a variety of reasons , have a higher incidence of aggression than others .. Dog. Dog. Aggression is driven by a variety of physiological and environmental factors .. It is expressed through threat displays , defense displays , and attack .
not_related.