In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
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Question: Question: How many times did Kurt Angle win the NWA Heavyweight Championship? Passage:The Impact World Championship is a professional wrestling world championship owned by the promotion Impact Wrestling, formerly Total Nonstop Action Wrestling (TNA). From June 2002 to May 2007, TNA used the NWA World Heavyweight Championship as their primary championship due to an agreement with the National Wrestling Alliance (NWA). On May 13, 2007, the NWA abruptly ended the arrangement and retrieved control of the NWA World Heavyweight Championship. On the same night, TNA were set to host their annual Sacrifice pay-per-view event, in which the NWA World Heavyweight Championship was to be defended by then-champion Christian Cage against Kurt Angle and Sting in a three-way match. Angle won the match and on the following episode of TNA's television program Impact! on May 17, was declared the new TNA World Heavyweight Champion. He was stripped of the championship later in the program, with Management Director Jim Cornette citing a problematic finish to the title match. The ownership of the championship was decided on June 17, 2007 at TNA's Slammiversary event in a King of the Mountain match involving Angle and Cage along with A.J. Styles, Chris Harris and Samoa Joe, which Angle won.


Answer: a


Question: Question: Was Nathan Sivin alive when Han Zhenhua claimed that Nanhai referred to the Scarborough Shoal? Passage:The People's Republic of China and the Republic of China (Taiwan) claim that Chinese people discovered the shoal centuries ago and that there is a long history of Chinese fishing activity in the area. The shoal lies within the nine-dotted line drawn by China on maps marking its claim to islands and relevant waters consistent with United Nations Convention on the Law of the Sea (UNCLOS) within the South China Sea. An article published in May 2012 in the PLA Daily" states that Chinese astronomer Guo Shoujing went to the island in 1279, under the Yuan dynasty, as part of an empire-wide survey called "Measurement of the Four Seas" (四海测验), however, no such 13th century map has been made public by China nor such evidence on the existence of the map is known. In 1979 historical geographer Han Zhenhua (韩振华) was among the first scholars to claim that the point called "Nanhai" (literally, "South Sea") in that astronomical survey referred to Scarborough Shoal. In 1980 during a conflict with Vietnam for sovereignty over the Paracel Islands (Xisha Islands), however, the Chinese government issued an official document claiming that "Nanhai" in the 1279 survey was located in the Paracels. Historical geographer Niu Zhongxun defended this view in several articles. In 1990, a historian called Zeng Zhaoxuan (曾昭璇) argued instead that the Nanhai measuring point was located in Central Vietnam. Historian of astronomy Chen Meidong (陈美东) and historian of Chinese science Nathan Sivin have since agreed with Zeng's position in their respective books about Guo Shoujing.


Answer: b


Question: Question: Of the other main contenders, who was the oldest? Passage:Assert was then matched against older horses for the first time in Britain's most prestigious weight-for-age race, the King George VI and Queen Elizabeth Stakes over one and a half miles at Ascot Racecourse on 24 July. He started the 10/11 favourite ahead of his half-brother Bikala who had beaten a strong field in the Prix Ganay on his previous start. The other main contenders were Kalaglow, Height of Fashion and Glint of Gold. Assert went past Bikala on the turn into the straight and held off a strong challenge from Glint of Gold, but was caught inside the final furlong and beaten a neck by Kalaglow. On 17 August Assert was ridden by Pat Eddery in the eleventh running of the Benson and Hedges Gold Cup over ten and a half furlongs at York Racecourse. Starting the 4/5 favourite against six British-trained opponents, he took the lead from the start and pulled clear in the straight vo win easily by six lengths from Norwick. A month later, Assert started the 1/4 favourite for the Joe McGrath Memorial Stakes over ten furlongs. With Roche back in the saddle, he went eight lengths clear in the straight before being eased down to win by three lengths from Kind of Hush. Timeform described the race as being "little more than an exercise gallop" for the winner. On 3 October, Assert started 5/2 favourite for the Prix de l'Arc de Triomphe on very soft ground at Longchamp Racecourse. He was well-positioned turning into the straight but dropped away in the closing stage and finished eleventh of the seventeen runners behind Akiyda.


Answer:
a