Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Is this 30k hz?
Document: works fine
this is going to be a lot of fun in the haunted house. We are using this as apart of the electric chair. It is both voice activated as well as by the touch of the hand. This is going to be a good add to the display.
Works as listed and am quite satisfied with it. I'm looking forward to seeing what my grandkids think of it on Halloween.
This was great! It was very nice and not cheap looking. The only issue we had was the sound quality of the nebula ball was poor. Other than that well worth it~ Thats the only reason I did not give it 5 stars.
This was a gift for my boyfriend who had it maybe two weeks and it just completely stopped working :(
This was a gift for my 13 year old grandson who LOVED it!. Much larger than I anticipated and very cool.
This things feels like its constructed very well. ....nice glass and very very nice plasma effect. It looks like the middle is some unsual substance. Very nice and very happy I spent just a little more
This item was perfect in size for my application. I ordered  2 of them and both worked perfectly as advertised. They do pulse to the music but are more impressive just letting them run full on all the time.
This is super cool!! The hit of my 8 year old nephews birthday party. All ages were fascinated by it. Only negative is that it is pretty fragile.
This is a nice size, big enough to play with and transport, not so big as to be ungainly. Works well, strong enough current so that you can play with different effects by touching it. Thumbs up!
Answer: no