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: is it air tight
Document: good quality. not too much storage space. its only about 3 inches tall inside so you can't store anything too tall. It isn't air tight. Description is true to this product. at a look this looks like a book but if you hold it it's obvious its not. Key works well. simple lock and unlock mechanism, works well. would recommend this product.
when this arrived, my son and I loved it, and we ordered an other one....great item
very very cool. my son has really enjoyed it from the second he saw it. looks real enough to work
very useful and reasonably priced item; looks like a book from a distance, but if you can see the pages up close it is obvious what it is.
this will be perfect for my daughter when she goes off to college. The dictionary looks very real. Good Quality too.
this item has mixed features but still better than expected given the other reviews. the outside does look like an authentic book except for the plastic pages - but you have to be up close in the right light to notice this. a mere glance at a bookshelf would not immediately make it apparent that the pages are plastic. the lock works smoothly. there are 2 keys. it opens easily. It will do the job reasonably well.
this blends in good with my other books and it holds a lot. i do like it and i would recommend it.
safe to protect our guns each time she leaves the house or comes back to it. I said "guns" because we have other such methods hiding other guns throughout the house. You never know which room you will be in or whether or not you'll be on the first or second floor when the $#@& animals come for you. Be ready for them!
pretty big space to put few important paper works, cash and lock it. put it between few books and its hard to notice that it is a metal box.
okay
Answer: yes