Definition: In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Input: passage: 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?

Yes