In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Example Input: Question: Which location in California where the LST-1159 stopped at has a higher land elevation? Passage:Initially attached to Amphibious Forces, Atlantic Fleet, LST-1159 conducted shakedown in Guantanamo Bay and the Caribbean before commencing local operations out of Norfolk and Little Creek, Virginia. She departed Norfolk on 24 February 1954 for duty with Amphibious Forces, Pacific Fleet, and, after a transit of the Panama Canal, reached the west coast on 20 March. The tank landing ship operated out of her new home port, San Diego, until 20 September, including calls at San Francisco, San Pedro, California, and Esquimalt, British Columbia. LST-1159 stopped briefly at Pearl Harbor before proceeding on toward Japan. While on the voyage across the Pacific, the ship was diverted to join Task Force (TF) 98 in Southeast Asian waters and arrived at Henriette Pass, near the port of Haiphong, French Indochina on 29 October. Taking part in "Operation Passage to Freedom", LST-1159 transported refugees from the northern part of what became a divided Vietnam, to the southern ports of Tourane (Da Nang) and Saigon.

Example Output: a

Example Input: Question: What other album covers did Storm Thorgerson depict? Passage:The record builds on ideas explored in Pink Floyd's earlier recordings and performances, while omitting the extended instrumentals that characterised their earlier work. A concept album, its themes explore conflict, greed, time, death, and mental illness, the latter partly inspired by the deteriorating health of founding member Syd Barrett, who departed the group in 1968. The group used recording techniques such as multitrack recording, tape loops, and analogue synthesisers. Snippets from interviews with the band's road crew, as well as philosophical quotations, were also used. Engineer Alan Parsons was responsible for many sonic aspects and the recruitment of singer Clare Torry, who appears on "The Great Gig in the Sky". The sleeve, which depicts a prism spectrum, was designed by Storm Thorgerson, following keyboardist Richard Wright's request for a "simple and bold" design, representing the band's lighting and the record's themes. The album was promoted with two singles: "Money" and "Us and Them".

Example Output: b

Example Input: Question: How long had Pope Pius XI been serving as Pope for the year he instituted Christ the King Sunday? Passage:The Solemnity of Our Lord Jesus Christ, King of the Universe, commonly referred to as the Feast of Christ the King or Christ the King Sunday, is a relatively recent addition to the Western liturgical calendar, having been instituted in 1925 by Pope Pius XI for the Roman Catholic Church. In 1970 its Roman Catholic observance was moved to the final Sunday of Ordinary Time. Therefore, the earliest date on which it can occur is 20 November and the latest is 26 November. The Anglican, Lutheran, and many other Protestant churches also celebrate the Feast of Christ the King, which is contained in the Revised Common Lectionary. Roman Catholics adhering to the Extraordinary Form of the Roman Rite use the General Roman Calendar of 1960, and as such continue to observe the Solemnity on its original date of the final Sunday of October. It is also observed on the same computed date as the final Sunday of the ecclesiastical year, the Sunday before the First Sunday of Advent, by Western rite parishes of the Russian Orthodox Church Outside Russia. In 2019, the feast day is celebrated on 24 November.

Example Output:
b