With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Welcome Back (film) features an ensemble cast.
text_B: The Torno is an Italian river whose source is in Aspromonte National Park .. Aspromonte National Park. Aspromonte National Park. From there , the river flows southeast and empties into the Ionian Sea north of Brancaleone .. Ionian Sea. Ionian Sea. Brancaleone. Brancaleone, Calabria
not_related.