Input: Force is a vector. What then is a vector? Think about how you would give directions to a friend. You would not say, just walk half a mile. The person may walk a half mile in the wrong direction! More information is needed. You may say, follow this particular road for a half mile. You may say, look for the green house on Sumter St. In both examples, you provided a direction. You also gave the distance. In other words, you provided a vector. You did not just give a distance. Both pieces of information are needed to find a location. This is just like describing forces. To explain forces, both size and direction are needed. Notice the girl in Figure 1.1. She is pushing the swing away from herself. Thats the direction of the force. She can give the swing a strong push or a weak push.

Does the response "3 miles" correctly answer the question "How far is the green house on Sumter St.?"?
***
Output: no

Input: After becoming disabled in a machete attack on a visit to his native Haiti, Jean-Claude Joseph needed help persuading his landlord to move him from a fifth-floor apartment to one on the ground floor. Isaac Benjamin became ensnared in a bureaucratic snafu that took away his Social Security disability payments for more than two years. The story of Martha, a woman from Sierra Leone, was more compelling. Beaten, raped and tortured in her politically repressive homeland, she knowingly used someone else's passport to escape to America, but was caught by immigration authorities upon her arrival. She desperately sought political asylum. Not the kind of cases that lead to ground-breaking upheavals in the law, but the kind of cases that are handled day in and day out by lawyers for the legally disenfranchised who have no where else to turn. The work of attorneys from Legal Services of New Jersey will be highlighted in a onehour documentary, "Quest for Justice," to be aired 9 p.m. today on New Jersey Network. Produced by NYD2, a communications firm based in Somerset, the documentary features case histories of clients whose needs ranged from housing to fighting off deportation. Joseph, a 54-year-old naturalized citizen, turned to Legal Services when the landlord of his federally subsidized apartment complex in Elizabeth turned a deaf ear to his request for a ground-floor apartment. Having lost the use of his left arm in warding off the machete attack during a robbery attempt, Joseph said he found it increasingly difficult to negotiate the five flights of stairs lugging groceries or laundry on the frequent occasions when the building's elevator was out of order. "With this, it became impossible for me to stay upstairs," he said, pointing to the scars on his forearm. "If I cannot carry my groceries or my laundry, how can I live?" "It was a compelling case," said Legal Services attorney Stephen St. Hilaire. "The key for us -- and we have to make tough decisions all the time on whether to take a case -- was visualizing what he had to do to get to the fifth floor, struggling with a bag of groceries," he said. Benjamin, 53, of Jersey City had been collecting Social Security disability after undergoing double bypass surgery when the checks stopped coming. He said the agency claimed he had failed to return a form updating the condition of his health. "But what got me was they didn't let me know they didn't get it, they just cut me off," he said, adding he found it impossible to negotiate the Social Security bureaucracy himself.

Does the response "The Legal Services of New Jersey" correctly answer the question "Who helped native Haiti Jean-Claude Joseph when his landlord would not accommodate his disability?"?
***
Output: yes

Input: Imagine you are standing in a farm field in central Illinois. The land is so flat you can see for miles and miles. On a clear day, you might see a grain silo 20 miles away. You might think to yourself, it sure is flat around here. If you drive one hundred miles to the south, the landscape changes. In southern Illinois, there are rolling hills. Why do you think this is? What could have caused these features? There are no big rivers that may have eroded and deposited this material. The ground is capable of supporting grass and trees, so wind erosion would not explain it. To answer the question, you need to go back 12,000 years. Around 12,000 years ago, a giant ice sheet covered much of the Midwest United States. Springfield, Illinois, was covered by over a mile of ice. Its hard to imagine a mile thick sheet of ice. The massive ice sheet, called a glacier, caused the features on the land you see today. Where did glaciers go? Where can you see them today? Glaciers are masses of flowing ice.

Does the response "A giant ice sheet covered much of the Midwest United States" correctly answer the question "What couldn't the erosion have been caused by?"?
***
Output: no

Input: Nathan read the package of words in silence, his only motions the steady progress of his eyes and occasional replacement of pages. Allan sat nervously across from him in a chair Nathan had probably upholstered himself, a patchwork design of fabric containing easily more stuffing than any other furniture item of the period. At long last, Nathan reached the end and set down his reading on the table between them. Allan leaned forward unconsciously. "It's the best story you've ever written." Allan exhaled and leaned back into the chair, his face relaxing in imitation of his thoughts. "So," he asked, "you don't think it's a waste of ink and paper, a futile expedition into morbidity or literary debauchery?" "Heavens, no," said Nathan, aghast. "This is one of the strongest works I've read in ages. It speaks to the deepest storyteller's instinct within us all, yet is entirely original. My dear friend, you have done it. Oh, they may rail against you at first; they may decry you as a heathen or a literary savage; but while those in power say such things, others will read your tales and see their true worth. Believe me when I say that you will be read a century from now." Allan, though dubious as to that possibility, felt some temptation from the compliment; mainly, it granted him the encouragement he still needed. Nathan promised to show the story to a printer he knew and Allan left it with him, then walked home under the spreading maples with a smile lingering on his face. He felt now that perhaps Nathan was right; although the man was somewhat peculiar, he had both an unimpeachable honesty and a certain propensity for insight. Certainly, it was undeniable that the stories had an originality to them. His mind's strangest fruit had ripened at last, and he found the taste less bitter than expected. These thoughts and others like them filled his head as he walked the long road home. It was evening, and the sky burned orange in the west when he neared home at last.

Does the response "He was worried that Nathan would not like what he wrote" correctly answer the question "Why was Allan nervous?"?
***
Output:
no