With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Las Vegas is in the Rocky Mountains.
text_B: Fangio , the Demon of the Tracks -LRB- Fangio , el demonio de las pistas -RRB- is a 1950 Argentine motor racing film directed by Roman Vinoly Barreto , starring Yvonne Bastien , Ernesto Bianco , Armando Bo and Nestor Deval .. Roman Vinoly Barreto. Roman Vinoly Barreto. Armando Bo. Armando Bo. List of Argentine films of 1950. Argentine. Argentina. motor racing. motor racing. film. film. Yvonne Bastien. Yvonne Bastien. Ernesto Bianco. Ernesto Bianco. Nestor Deval. Nestor Deval
not_related.