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: Thiamine deficiency, also known as beriberi, is a condition that occurs due to not enough thiamine (vitamin B1). There are two main types: wet beriberi, and dry beriberi. Wet beriberi results in a fast heart rate, shortness of breath, and leg swelling. Dry beriberi results in numbness of the hands and feet, confusion, trouble moving the legs, and pain. A form with loss of appetite and constipation may also occur.
 question: beri beri is caused by lack of vitamin?

Yes