With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: They are semi-aquatic: they retain the wide ventral scales typical of terrestrial snakes for moving on land but also have paddle-shaped tails for swimming.
text_B: They are semi-aquatic: they retain the small ventral scales typical of terrestrial snakes for moving on land but also have paddle-shaped tails for swimming.
contradiction.