With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Larry Junstrom died on June 22, 1949.
text_B: Neuraminidase enzymes are glycoside hydrolase enzymes that cleave the glycosidic linkages of neuraminic acids .. glycoside hydrolase. glycoside hydrolase. Neuraminidase enzymes are a large family , found in a range of organisms .. The best-known neuraminidase is the viral neuraminidase , a drug target for the prevention of the spread of influenza infection .. viral neuraminidase. viral neuraminidase. influenza. influenza. The viral neuraminidases are frequently used as antigenic determinants found on the surface of the influenza virus .. influenza. influenza. antigenic determinants. antigenic determinants. Some variants of the influenza neuraminidase confer more virulence to the virus than others .. influenza. influenza. Other homologues are found in mammalian cells , which have a range of functions .. At least four mammalian sialidase homologues have been described in the human genome -LRB- see NEU1 , NEU2 , NEU3 , NEU4 -RRB- .. sialidase. sialidase. human genome. human genome. NEU1. NEU1. NEU2. NEU2. NEU3. NEU3. NEU4. NEU4
not_related.