Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: What is the plastic no. in the triangle logo at the bottom of the bottle?
Document: So this is eco friendly. Overall I think it is a good concept. The problem is in order to make it a non-drip bottle they had to clog off any outside air vent so that is the reason why you have to suck a bunch. Also you will probably take this and the first time you use it treat it like non-drip glass and use it bottoms up only to discover that the plastic straw so to speak goes down to the bottom and then you are sucking air.
I highly recommend this water bottle.Edit: So after having this bottle for a few months, the bite nozzle seemed to have worn down and now has an air hole towards the bottom of the rubber bite tip. Now every time I bite the nozzle to drink, there is air coming through with the water. Very disappointing, now I use a different bottle.
Not the way to go - the water flows from the bottom of the bottle via a straw. Upside down and you'll get air. That figured out (! ), I have no problems drinking from the bottle with it upright. The handle does not get anywhere near my face, as reported by other reviewers - it is opposite my mouth and the bottle is not tilted. I hear no sound at all as a one-way valve/flap lets air into the bottle as I drink.
(It looks like a simple charcoal-based filter. It isn't a sophisticated filter that will allow you to fill up at a mountain stream and eliminate bacterial contaminants from the water.) 600ml (.6l) capacity gives you plenty of water to tote around.The main drawback to this bottle is the bite valve. You have to bite the top and bottom of the rubbery valve at the top to get it to open. It's difficult to suck much water through the filter and valve.
I used this product for about a week and realized that there was some kind of sediment in the bottom of the bottle. I thought something was wrong with my faucet, so I fixed my faucet and kept using the bottle. After another week, I realized that the sediment was still there. I rinsed the bottle out thoroughly. After another week, I looked at my bottle and realized that it was actually mold growing inside the bottle and was horrified to see that there was even mold inside the bite valve!
So far no issues. No drips or leaks. Maybe could have had a little longer straw to hit the bottom so there's not a 1/4 inch of liquid left. Only other down side is that unlike some of the other water bottles that have the filter at the lid, once you drink some from this, you can no longer tilt it up and drink because the end of the straw wont be submerged.
But the instructions are clear that this filter is meant to reduce "chlorine, taste and odor" and does NOT make unsafe drinking water safer. So if you are looking for something to filter water in the backwoods or a foreign country, that's not what this is designed to do.Bottom line: if taste of tap water is keeping you from drinking it as much as you'd like, this works and is probably a great option. But from what I can tell, that really is its only use.
This may be less of issue (the temperature, not the condensation) with the plastic varieties of the bottle but I liked the look of the metal one better.
Great present, but plastic mouth piece was defective. City water is much improved by this handy little bottle, my friend loves it.
This small container makes water taste like the plastic it's made of, after it sits outside in the heat or in a hot car for a few hours. I'd hoped to find something better & safer than my used plastic Ozarka bottle.
Answer: yes