Task: Question Answering
Input (English): Passage: Lily of the valley -- The plant also contains saponins. Although deadly, the plant has been used as a folk remedy in moderate amounts, and is currently used by herbalists as a restricted herbal remedy. It also contains the unusual, poisonous amino acid azetidine-2-carboxylic acid.
Question: is lily of the valley poisonous to humans
Output (English): 1