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: can you change the stock to a collapsible one?
Document: Was pack in stock box for all to see,Also end of box was half gone. Every thing was in box,mounted scopeHave not shot rifle yet
This is one bad to the bone pellet rifle.It's pretty hard cock though, stiff action.It had better scope be better rifle.
Their new &#34;nitro piston&#34; one pump design WILL surprise you the first few times you shoot the rifle. IT IS POWERFUL! Unlike previous opinion, &#34;cocking&#34; the rifle is NOT hard...not even kinda sorta.I give a 10 on looks- from 2 feet away it looks like a real AR15.
Crosman Pellgunoil Air Gun Lubricating Oil (1/4 ounces)I  bought one just because of the looks  yes  it  looks  just like  an  m2  m16  so  dont go waving it arourd  in public  its  the same as a nitro venom  gun wise  ,  same HORRIBLE  heavy  crosman trigger ,  im  lucky  my brother knows how to  do  the washer trick  to  make  it  light  and fun to shoot  .
accuracy  for  what we do is the same . both are 177  and  the  10.5  grain  crosman  pellets  work  the best  i  shoot  both guns  ,  nice  scopes  to  75  yards  and more ,  but  bottom  line  is  if  you  cant  do  or  have done a  crosman  trigger is like  8  pounds .. you will  hate  the gun  same for  gamo  you  can  buy  the  rws  out of the box  with  1.5  trigger  and  love  it  but  the  stock  trigger  on  gammo  or  crosman  really  sucks  you will  never  enjoy  it  period  .
they claim it's quiet not at all really powerful changed a lot since I was a kid with Little Red Ryder
Well this is VERY disappointing. I as well as my neighbor who both shoot &#34;real&#34; rifles and handguns cannot even hit a target with this rifle. We have been trying to scope it in and get the rifle to hit the target from 30-50 ft away....NOT EVEN CLOSE...WHAT A WASTE OF MONEY! I never had such a problem with either a real rifle or any other air rifle
This is a really good pellet gun it's very powerful at 45 meters it can penetrate both sides of the garbage can I use to put my trash in to get picked up every Friday.
This gun is powerful and accurate. It does not come with front or rear sights but after using the scope I realized I would never use the sights anyway. The rifle is a little harder to cock than other break barrel rifles but with a little practice you develop a technique that makes it easier.
The pseudo magazine catch button broke off soon after getting the rifle, so Ijust left the mag out.It is a very loud pellet rifle. Almost at the level of a .22lr at first,  it quiets down a bitafter a few hundred shots.Accuracy is not great, maybe due to the short barrel and the recoil.Even shooting off a table on shooting bags the shot consistency is not good.I like the weight and solid feel of the rifle.
Answer: no