With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Tributyltin oxide (TBTO) is an organotin compound chiefly used as a biocide (fungicide and molluscicide), especially a wood preservative.
text_B: Tributyltin oxide TBTO is an organotin compound chiefly used as a biocide molluscicide, especially a wood preservative.
entailment.