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: is a crank available for this bow
Document: hopefully no one else has this expierince with this bow because now that it is together it is one of my favorites.
Easy to put together and shoots extremely well !! This is the first time I've shot a bow of any kind and I love it.
it's really nice. It's accurate and very fast.I can't shoot a regular bow because of a shoulder injury but I can shoot this crossbow. I like the way it's balanced. It's great. I love shooting it.
Was very easy to sight in. Bow is deadly at 60 yards. (my final practice shots).I sure hope that this was the only bug in this bow. I would hate for this to happen during hunting season.I really like the look and the way the bow feels when shooting.john
I watched videos and read the directions over and over to see if i was missing something. I followed the directions to the letter after not being able to do it with out them, and it was still to no avail. then i resorted to the sanding and the dremel. after fixing some of the problems it went together like a glove and preforms flawlessly. i love the bow itself but this thing was borderline a lemon out of the box.
ok where to start. well first off i love this bow now but it took some work. out of the box it would not assemble properly. the holes in the riser werent drilled all the way and were kind of cockeyed. this meant i had to take a dremel and straighten them out  but before that i had to sand down the riser and the frame some because the rise wasn't cut to size and you couldn't physically make it fit  even with force.
I received the Barnett Vengeance crossbow yesterday in the mail and took it to the range for the first time today. I'm just going to post a review of my initial observations and I'll post again when I have a chance to spend some more time with it.Assembly: The bow went together fairly easily. As they mention in the instructions, it has very high fit tolerances, so it takes a lot of pressure to get all the parts to line up flush.
I'm 5'2 and it is probably impossible to cock this crossbow without modifying the rope. However, the rope was easily modified and now I can cock it without a problem. Pulling requires only a moderate level of strength.Construction: The bow is very sturdy and there aren't any parts that appear to be weak or flimsy. After firing several times, however, the two rubber string dampeners at the front of the bow popped off. We had to spend some time looking for them.
Wow looks like a genius invented a new way of delivering a cross bow to the world. I give that man 30 thumbs up! I hope his manliness shines like a glowing alien light in the night sky and any dansel woahs at his feet when he sets out to get that beast and bring the feast back to the village...Just a pretty looking crossbow. I think I might try to save up for this one... So unique...
Once assemble I purchased a Pursuite X1 3x32 crossbow sight with a HHA optimizer. This is not needed cause the optics that comes with the bow are spot on also I just use the scope that came with it and put it on my other Barnett Recruite. For 800 to 900 dollars people you will be hard to find a more quiet,fast,light and accurate crossbow out there. It looks amazing I have the black carbon look one but am considering buying a camo one also.
Answer: yes