With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The anthem for Liverpool F.C. is "You'll Never Walk Alone".
text_B: The Northrop Alpha was an American single-engine , all-metal , seven-seat , low-wing monoplane fast mail / passenger transport aircraft used in the 1930s .. monoplane. monoplane. Design work was done at the Avion Corporation , which in 1929 , became the Northrop Aircraft Corporation based in Burbank , California .. Northrop Aircraft Corporation. Northrop Corporation
not_related.