Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: pump
Document: You will need an electric air pump - and it is easy to blow up.
YOu have to use a good pump or else it will not work. It took me 3 hours to pump up
Okay chair as it could be better, it is short and not a high chair. Got to air it up few times and doesn't come with a pump.
Hard to inflate without a pump. Didn't hold air the way we had hoped. Would not recommend to anyone at this time.
This unit is a pain to inflate since the pump doesn't secure to the intake valve. It is also very very large. I miscalculated the width which was my fault.
It did not come with a air pump, so that made it very difficult to inflate...It was not very comfortable once it was inflated...It was not very tough either, because all it took was a cats claw to puncture it!
Searched through all of the mattresses and decided I'd try this. It's nice that you can fold it into a useful space after inflating. Be sure to order the 3 in 1 pump.
Chair is very hard to inflate and needs special valve or something to pump large part. You should get a pump with this bad char. #badchair
OMG, that smells so bad when I open the box, it looks nice, but the important thing is that they dont have air pump, i have to buy one, it suppose to have one :(
I really wish this would have come with an air pump. I would have even paid a little bit more. But it didn't and because of that, it doesn't make it very accessible to use daily.
Answer: yes