With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Venom is commonly associated with snakes.
text_B: The railway from Marseille to Ventimiglia is a French and Italian 259-kilometre long railway line .. Ventimiglia. Ventimiglia railway station. French. France. Italian. Italy. railway. railway. It is used for passenger -LRB- express , regional and suburban -RRB- and freight traffic .. The railway was opened in several stages between 1858 and 1872 .. railway. railway
not_related.