This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Example Input: Passage: The Chinese intervention in late October 1950 bolstered the Korean People's Air Force (KPAF) of North Korea with the MiG-15, one of the world's most advanced jet fighters. The fast, heavily armed MiG outflew first-generation UN jets such as the F-80 (United States Air Force) and Gloster Meteors (Royal Australian Air Force), posing a real threat to B-29 Superfortress bombers even under fighter escort. Fearful of confronting the United States directly, the Soviet Union denied involvement of their personnel in anything other than an advisory role, but air combat quickly resulted in Soviet pilots dropping their code signals and speaking over the wireless in Russian. This known direct Soviet participation was a casus belli that the UN Command deliberately overlooked, lest the war for the Korean peninsula expand to include the Soviet Union, and potentially escalate into atomic warfare. Question: Who feared engaging in direct conflict with the United States?
Example Output: Soviet Union

Example Input: Passage: For its 2015 season, the league consisted of 12 teams, all from the United States; however, upon the completion of the regular season, the league announced that the two teams it had assumed operation of during the season would cease all operations effective immediately; a regular season game slated between the two had previously been canceled and declared a tie. Subsequently, one of the remaining teams, the Spokane Shock, severed its ties with the league to join the competing IFL. The AFL is divided into two conferences  –  the American Conference and National Conference. Starting 2016, each conference will have only four teams as the champion San Jose SaberCats announced in November 2015 that they were ceasing activity for "reasons not associated with League operations." Question: Along with the American Conference, what is the other conference in the AFL?
Example Output: National Conference

Example Input: Passage: In June 1970, Nasser accepted the US-sponsored Rogers Plan, which called for an end to hostilities and an Israeli withdrawal from Egyptian territory, but it was rejected by Israel, the PLO, and most Arab states except Jordan. Nasser had initially rejected the plan, but conceded under pressure from the Soviet Union, which feared that escalating regional conflict could drag it into a war with the US. He also determined that a ceasefire could serve as a tactical step toward the strategic goal of recapturing the Suez Canal. Nasser forestalled any movement toward direct negotiations with Israel. In dozens of speeches and statements, Nasser posited the equation that any direct peace talks with Israel were tantamount to surrender. Following Nasser's acceptance, Israel agreed to a ceasefire and Nasser used the lull in fighting to move SAM missiles towards the canal zone. Question: Who pressured Nasser to accept the Rogers Plan?
Example Output:
Soviet Union