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: Since the back tires are made from plastic, do they have any sharp pieces / small holes or are they smooth at every point that touches the floor?
Document: I had some concern with shipping and ease of assembly. On both counts I was very pleased. The size of this trike was perfect for my 4 year old grandson on all of the lowest settings. He will have plenty of room to grow and use it for some time. I love how sturdy it is with the rubber front tire that does not slip and yet the heavy plastic rear tires will allow skidding out. The trike is very flashy and my grandson loves it!
If I had to complain about anything it would be the location or positioning of the air valve. My air pump was a tight fit. Had to take off the plastic &#34;hub&#34; that covers the spokes to put air in the tire. Could be the bike or could be my pump. Also had to put some lubricant on the front wheel axle as it started to squeak a little but no big deal.
My son loves his new big wheel, after reading reviews this was the one over the old school big wheels. It has a inflated rubber tire up front so it should last longer than one year, no peeling out (although that was the most fun part as a child). He rides it like it a race car and it corners like one, his tricycle could have never taken turns like this.
I would suggest it to any one with a 3 -6 year old.
I got a set of these for my niece and nephew. they rode them all weekend and it's hard to get them off still. Very easy to assemble. Sturdy. Reminds me of my favorite one when I was a kid.
Great little big wheel. My son loves it, he feels so big riding it around, and it is very sturdy. Great quality product.
Go ahead and buy this trike!
Bought this for Christmas from Santa for my 3 year old who was 2 months shy of his 4 th birthday. Bought it site unseen and a little skeptical of the height requirements. Wanted to get a Razor 360 but he didn't fit on the neighbors. My son is 41 inches tall and has an inseam of 17 ish inches. The trike has 3 seat positions and he is currently riding it at its shortest setting so he has a little room to grow.
Answer: no