Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Do these gloves have a sun block added?  Are they resistance to the sun?
Document: I solved this by thinking &#34;duck feet.&#34;  Aquatic birds close their toes when moving their feet forwards, and splay them out to make use of their webbing. I also pay attention to angles.An added and unexpected benefit is that my hands stay warm during my workouts. With arthritis developing in my dominant hand, it helps.
Since part of my swim routine is for muscle-building, I wanted something in addition to the weights that my aquatic center offers. I bought these based on the reviews, and having never used them before, picked the mediums for my hands, which are short in length, and wide (good ole' laboring hands). These fit perfectly. It took a bit of time to get used to them over bare hand swimming, but I have the hang of them.
Answer: no