With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Alive 2006/2007 was a tour by a French music trio.
text_B: SARS coronavirus main proteinase -LRB- , 3cLpro , 3C-like protease , coronavirus 3C-like protease , Mpro , SARS 3C-like protease , SARS coronavirus 3CL protease , SARS coronavirus main peptidase , SARS coronavirus main protease , SARS-CoV 3CLpro enzyme , SARS-CoV main protease , SARS-CoV Mpro , severe acute respiratory syndrome coronavirus main protease -RRB- is an enzyme .. enzyme. enzyme. protease. protease. SARS coronavirus. SARS coronavirus. This enzyme catalyses the following chemical reaction. enzyme. enzyme. catalyses. catalysis. chemical reaction. chemical reaction. This protease is important in SARS coronavirus replicase polyprotein processing .. protease. protease. SARS coronavirus. SARS coronavirus. replicase. replicase
not_related.