Input: At length, as I entered the pass, the huge rocks began to close around in all their wild, mysterious impressiveness, when suddenly, as I was gazing eagerly about me, a drove of gray hairy beings came in sight, lumbering toward me with a kind of boneless, wallowing motion like bears. I never turn back, though often so inclined, and in this particular instance, amid such surroundings, everything seemed singularly unfavorable for the calm acceptance of so grim a company. Suppressing my fears, I soon discovered that although as hairy as bears and as crooked as summit pines, the strange creatures were sufficiently erect to belong to our own species. They proved to be nothing more formidable than Mono Indians dressed in the skins of sage-rabbits. Both the men and the women begged persistently for whisky and tobacco, and seemed so accustomed to denials that I found it impossible to convince them that I had none to give. Excepting the names of these two products of civilization, they seemed to understand not a word of English; but I afterward learned that they were on their way to Yosemite Valley to feast awhile on trout and procure a load of acorns to carry back through the pass to their huts on the shore of Mono Lake.

Does the response "He met Mono Indians who were going to the valley for trout and acorns" correctly answer the question "Who did the narrator meet on his journey and what were they on their way to do?"?

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Output: yes

Input: After the August missile strikes, diplomatic options to press the Taliban seemed no more promising than military options. The United States had issued a formal warning to the Taliban, and also to Sudan, that they would be held directly responsible for any attacks on Americans, wherever they occurred, carried out by the Bin Laden network as long as they continued to provide sanctuary to it. For a brief moment, it had seemed as if the August strikes might have shocked the Taliban into thinking of giving up Bin Laden. On August 22, the reclusive Mullah Omar told a working-level State Department official that the strikes were counterproductive but added that he would be open to a dialogue with the United States on Bin Laden's presence in Afghanistan. Meeting in Islamabad with William Milam, the U.S. ambassador to Pakistan, Taliban delegates said it was against their culture to expel someone seeking sanctuary but asked what would happen to Bin Laden should he be sent to Saudi Arabia. Yet in September 1998, when the Saudi emissary, Prince Turki, asked Mullah Omar whether he would keep his earlier promise to expel Bin Laden, the Taliban leader said no. Both sides shouted at each other, with Mullah Omar denouncing the Saudi government. Riyadh then suspended its diplomatic relations with the Taliban regime. (Saudi Arabia, Pakistan, and the United Arab Emirates were the only countries that recognized the Taliban as the legitimate government of Afghanistan.) Crown Prince Abdullah told President Clinton and Vice President Gore about this when he visited Washington in late September. His account confirmed reports that the U.S. government had received independently. Other efforts with the Saudi government centered on improving intelligence sharing and permitting U.S. agents to interrogate prisoners in Saudi custody. The history of such cooperation in 1997 and 1998 had been strained. Several officials told us, in particular, that the United States could not get direct access to an important al Qaeda financial official, Madani al Tayyib, who had been detained by the Saudi government in 1997.67Though U.S. officials repeatedly raised the issue, the Saudis provided limited information. In his September 1998 meeting with Crown Prince Abdullah, Vice President Gore, while thanking the Saudi government for their responsiveness, renewed the request for direct U.S. access to Tayyib. The United States never obtained this access. An NSC staff-led working group on terrorist finances asked the CIA in November 1998 to push again for access to Tayyib and to see "if it is possible to elaborate further on the ties between Usama bin Ladin and prominent individuals in Saudi Arabia, including especially the Bin Laden family." One result was two NSC-led interagency trips to Persian Gulf states in 1999 and 2000. During these trips the NSC, Treasury, and intelligence representatives spoke with Saudi officials, and later interviewed members of the Bin Laden family, about Usama's inheritance.

Does the response "Al Qaeda financial official, Madani al Tayyib" correctly answer the question "Who was the US trying to contact during strained Saudi Relations in 1997, when they were denied the opportunity to question detainees?"?

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Output: yes

Input: Electric charge is a physical property. It occurs between particles or objects. It causes them to attract or repel each other. They do not even have to touch. This is unlike the typical push or pull you may be familiar with. All electric charge is based on the protons and electrons in atoms. A proton has a positive electric charge. An electron has a negative electric charge. Forces on Charged Objects Most atoms are balanced electrically. They have the same number of positive and negative charges. Therefore, the number of protons equals the number of electrons. Neutrons do not matter as they have no charge. When an object loses some electrons, it becomes positively charged. There are now more protons than electrons inside the atom. The lost electrons may remain free. Or, they may attach to another object. The new object now has more electrons than protons. It then becomes negatively charged.

Does the response "When there are more protons than electrons inside the atom" correctly answer the question "Why does an object's charge become positive?"?

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Output: yes

Input: Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter.

Does the response "There are no air particles." correctly answer the question "Why can't you hear in the vacuum?"?

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Output:
yes