With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Promise premiered at a London cinema.
text_B: Pelaverga is a red wine grape variety native to Piedmont .. wine. wine. grape. grape. variety. List of grape varieties. Piedmont. Piedmont wine. It is described as rare and pale , prone to make lightly sparkling , strawberry-flavoured wines .. sparkling. Sparkling wine. It may also be used as a table grape .. grape. grape. table grape. table grape
not_related.