instruction:
In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".
question:
You may be wondering, how can a glacier get so big? Why does it move? These are both good questions. In the winter months, precipitation falls as snow. This solid form of water builds up on the ground as long as the temperatures stay cold enough. As the temperature rises, the snow starts to melt. The frozen water changes state back into a liquid state. Nearer the poles, summer does not last very long. If the summer is long enough and warm enough, all the snow may melt. This is what typically happens now. The earth was a little cooler 12,000 years ago. As a result, during the summer months, that amount of snow did not melt. It may have only been an inch or so of snow that melted. The following winter, snow fell on top of this left-over snow. This next winters snowfall had a head start. Year after year, the snow that did not melt became thicker and thicker. Inch by inch the snow started to build up. Over many years, layer upon layer of snow compacted and turned to ice. <sep>What are two characteristics of glaciers?<sep>Big and compact
answer:
Yes

question:
Magnets are able to place a force on certain materials. This force is called a magnetic force. The force a magnet exerts is a little different from the forces you may normally think about. You exert a force on a book when you lift it. You also exert a force on the pedals of your bicycle. In both those cases, those forces cause a change. The change you see in both these cases is called motion. Magnets, too, can produce change. They can produce motion just like you do. Unlike you, magnets do not have to touch something to exert a force. A magnetic force is exerted over a distance. Thats right, a magnet can push or pull certain items without ever touching them. Thats how the maglev train works. Do you know another type of force that does not require objects to touch? These forces are known as non-contact forces. Another type of non-contact force you may be familiar with is gravity. Gravity too can cause changes in motion. Gravity holds our moon in orbit without touching it. <sep>What are a few examples of non-contact force?<sep>Gravity
answer:
Yes

question:
Tony Lama Co. said that Equus Investment II Limited Partnership has proposed changing the offer for the company to $13.65 in cash and stock from an all-cash transaction. Under terms of the new proposal, Equus, managed by Equus Capital Corp., Houston, would pay $12 cash and one new preferred share with a liquidation preference of $1.65 a share for each of Tony Lama's 2.1 million shares outstanding. Previously, it offered $13.65 a share in cash, or $29 million. The El Paso, Texas, maker of Western boots and leather accessories said the preferred stock would accrue dividends at a 12% rate, but wouldn't be paid for the first two years. The stock would be redeemed in five years, subject to terms of the surviving company's debt. Neither Equus nor Tony Lama gave a reason for the changed offer and Tony Lama couldn't be reached for comment. However, Tony Lama said it would promptly submit the offer to a special committee of the company's board. <sep>What company makes western boots and leather accessories?<sep>El Paso
answer:
No