Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this gun gas powered
Document: this gun was nice in the beginning but later it broke and the gas kept leaking but i had it for 1 year
Not bad for the money. Not impressed by he fps of this gun. I also bought the Z357 and there is no comparison.
This Is Perfect Acurate,Lightweight,And Good For BB WarsI Highly Recomend This Bad Ass Gun Just Buy It Now!Buy It
Works well worth $40 I want to get a better gun but this one is fine it shots about 40ft on a full cartridge
This is a heavy duty gun. Easy to use. High power and accurate. Lots of fun to use. Holds quite a few BB's in the mag.
This gun has great accuracy and is pretty powerful for its price.The only problem i had with it is inserting the CO2 cartridge at first but there is a quick to that.Well worth its value and highly recommend it!
Better than we could find locally, and at a lower price. We ordered spare clips so the &#34;fun&#34; wouldn't stop quickly with only one clip supplied with gun purchase.
I shot my friend with this boss c02 pistol and she got a few welts. She said it hurt. This gun totally shoots 400 fps. It is crazy. It is also dead accurate. Thanks for reading my review on this amazing airsoft gun.
This gun is not 400 fps does not go that far. But it is a sick close quarters combat gun. It left my friends pinky bleeding. With 12 gram bbs it is 400 fps. Do not use 12 use 20 because 12 work fine but 20 are way more accurate and its like 350 fps with them.
i ordered this as well as some Co2 cartriges, and the package arrived extremely damaged, and the package the gun came in was halfway open, the gun came to me scratched and the magazine wont lock into place, dont order as it is poor quality shipping. As for the gun itself it seems to function okay, but the magazine it came with was damaged and it wont feed properly, about 7/10 shots will fire
Answer: yes