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".

Example Input: One of the most dramatic changes in priorities proposed by the City Council would shift $25.6 million from funding for court-appointed lawyers to the Legal Aid Society. In a document released yesterday to justify its reordered priorities, the Council contended that Legal Aid can achieve greater economies of scale than lawyers appointed pursuant to Article 18-B of the County Law. The Council document also noted that "inexplicably" 18-B lawyers are handling 50 percent of the indigent criminal cases in New York City, even though their mandate is to handle only multi-defendant cases where the Legal Aid Society had a conflict. In past years, the City Council had consistently added $5.6 million to the $54.7 million proposed for the Legal Aid Society by former Mayor Giuliani, bringing the total to just a shade over $60 million. But this year for the first time, the Council is proposing shifting more than $20 million in funds earmarked by the Mayor for 18-B lawyers to the Legal Aid Society, which would increase its total funding to $80.4 million. That would reflect a jump in its current finding of about one-third. Meantime, the City Council proposed slashing the Mayor's allocation of $62.8 million for 18-B lawyers by 66 percent, to $21.4 million. <sep>Mayor Giuliani is the former mayor of which city?<sep>Legal Aid Society
Example Output: No

Example Input: The film is set in Igloolik in the Eastern Arctic wilderness at the dawn of the first millennium . http://atanarjuat.com/legend/legend_film.php The wind is blowing over a bleak snowy landscape while a man tries to herd away some marauding dogs . We hear the voice of an old man singing a childish song . Inside a stone house a strange shaman by the name of Tungajuaq , who comes from up north , is singing playfully to the gathered community and camp leader Kumaglak . But among the spectators there are some mistrustful faces . Flash forward to another day . Qulitalik is bidding goodbye to his sister Panikpak , wife of Kumaglak , promising to come if she calls for help in her heart . She gives him her husband's rabbit's foot for spiritual power . Qulitalik tells his sister , '' Tulimaq is the one they 'll go after now . '' It seems that Qulitalik is leaving to escape a threat , and the hope is that one day he will return to help . As Panikpak watches him leave , we hear a voice-over from a woman : '' We never knew what he was or why it happened . Evil came to us like Death . It just happened and we had to live with it . '' Flash back to the original scene in the stone house . The visitor and the camp leader Kumaglak are in a '' friendly '' spiritual duel involving binding in leather thongs . But Panikpak is startled when the stone lamp in front of her breaks in half , and , to the horror of those present , Kumaglak falls over dead . The visitor removes the leader's walrus-tooth necklace from Kumaglak's body , and , passing by Tulimaq , he puts the necklace around the neck of Sauri , the son of the murdered leader Kumaglak , saying , '' Be careful what you wish for '' . <sep>Did the visitor ever interact with Kumaglak?<sep>Friends
Example Output: No

Example Input: Alexander earned the epithet "The Great" due to his unparalleled success as a military commander. He never lost a battle, despite typically being outnumbered. This was due to use of terrain, phalanx and cavalry tactics, bold strategy, and the fierce loyalty of his troops. The Macedonian phalanx, armed with the sarissa, a spear 6 metres (20 ft) long, had been developed and perfected by Philip II through rigorous training, and Alexander used its speed and maneuverability to great effect against larger but more disparate Persian forces. Alexander also recognized the potential for disunity among his diverse army, which employed various languages and weapons. He overcame this by being personally involved in battle, in the manner of a Macedonian king. In his first battle in Asia, at Granicus, Alexander used only a small part of his forces, perhaps 13,000 infantry with 5,000 cavalry, against a much larger Persian force of 40,000. Alexander placed the phalanx at the center and cavalry and archers on the wings, so that his line matched the length of the Persian cavalry line, about 3 km (1.86 mi). By contrast, the Persian infantry was stationed behind its cavalry. This ensured that Alexander would not be outflanked, while his phalanx, armed with long pikes, had a considerable advantage over the Persian's scimitars and javelins. Macedonian losses were negligible compared to those of the Persians. At Issus in 333 BC, his first confrontation with Darius, he used the same deployment, and again the central phalanx pushed through. Alexander personally led the charge in the center, routing the opposing army. At the decisive encounter with Darius at Gaugamela, Darius equipped his chariots with scythes on the wheels to break up the phalanx and equipped his cavalry with pikes. Alexander arranged a double phalanx, with the center advancing at an angle, parting when the chariots bore down and then reforming. The advance was successful and broke Darius' center, causing the latter to flee once again. When faced with opponents who used unfamiliar fighting techniques, such as in Central Asia and India, Alexander adapted his forces to his opponents' style. Thus, in Bactria and Sogdiana, Alexander successfully used his javelin throwers and archers to prevent outflanking movements, while massing his cavalry at the center. <sep>How did Alexander change the use of the phalanx at the battle of Gaugamela?<sep>Equipped his cavalry with pikes
Example Output:
No