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

Input:
Question: What is that small button that is covered by the rubber stopper.It seems like a reset button, but for a flashlight?
Document: This flashlight had some issues when I first got it. The button wouldn't turn off so I had to unscrew the cap to get the flashlight to shu off wich defeated the watterproof function. once I took the cap apart and found the small metal shaving that was keeping the circuit closed and removed it, it worked fine. also the cap has several functions like 3 levels of brightness, then strobe, then sos flashes.
I really like the looks of this flashlight, it's bright and well manufactured. So far it seems to be working great.
This is a great flashlight BUT it has a three-mode switch, which really is a show-stopper. It has a rechargeable battery, is very bright on one of the three modes, and is very compact. If it was not for the switch, I would buy a hundred of them. I would not recommend this flashlight unless you like multi-mode switches and like to be surprised when you turn on your flashing flashlight.
These are by far the brightest flashlights I have ever owned. They are small but pack a wollop! Nicely constructed, very well made and feel like a nice tool to own. I am so thrilled I bought one other. Of note - these do not include the rechargeable batteries (which I assumed were just standard rechargeable batteries of which I have a ton.) They are specific batteries - I ended up buying a two pack of the batteries with the special charger to go along with the two flashlights I bought.
This little flashlight is a great tool. Powerful, small, and lightweight, a wonderful compact toy flashlight. everyone should have one.
For a flashlight that cost only ten bucks this thing rocks! Super bright, easy adjustments, the button works well and shipped as promised. Great
DO NOT purchase! MAJOR defect...on/off button does not function properly. It is  not even close to 1000ml. At most, it might measure up to 220ml. Warning...3.7 battery required, which is a special purchase. You will be very disappointed if you buy this flashlight !
A well-built aluminum flashlight for under $10. The LED is very bright, switching between the five modes (high, med, low, strobe, SOS) is easily done by clicking the on-off button repeatedly, or not clicking it all the way off, just tapping it lightly to turn off the current mode and letting it back on to the next mode.
This is indeed a very powerful flashlight, and for the money you get the flashlight, charger, and two batteries which seems very much worth the price. One thing to note is that the color temperature is very different than what I am used to with filament based flashlights. I find that the light (although bright) is somewhat difficult to use in tight spaces due to the specific lighting hue.
I bought 2 of these flashlights. One works great and it has a very bright light, but the other flashlight works only intermittently. It seems there must be a short or weak electrical connection. Anyway, I am disappointed in the quality of workmanship of the lights. The light however is superbright. Oh, one other thing. The description of the light was really not clear that it took a single 3.7 volt size 1865 battery. These are not very common and were difficult for me to locate.
Answer: yes