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: When was the library who now own the detailed estates survey drawn by J W Poundley first open? Passage:In the Middle Ages Cilthriew was one of the townships in Kerry. The township is also referred to as Kilroith or Kilroyth. Richard Williams makes the claim that Cilthriew and the neighbouring house of Brynllywarch (which was also a township) were in the ownership of the Pugh (ap Hugh) family from at least 1500. A William Pugh of Kilroith is mentioned in 1632, when he purchased from Ann Foxe, widow of Somerset Foxe lands in Kilroith including Maes y Deynant William Pugh of ‘‘Kilthrew’’ was the Sheriff of Montgomeryshire in 1767 and his son William, who was also Sheriff of Montgomeryshire in 1813, became a very successful attorney and purchased the Caer Howell estate in Montgomery. His son was the notable William Pugh, an entrepreneur, who did much to develop trade and infrastructure in the Montgomeryshire Severn valley. He paid for the final extension of the Montgomery Canal from Berriew to Newtown, and for various road building schemes including a road from Abermule along the Mule valley. In Newtown he encouraged the growth of the textile industry and was responsible for the Flannel exchange, designed by Thomas Penson. In 1828 he sold the Caer Howell estate, using the proceeds to develop Brynllywarch. For this work he may have employed T G Newnham and J W Poundley as his architects and surveyors. His schemes were over ambitious and in June 1835 he fled to Caen in Normandy to escape his creditors. This resulted in the Brynllywarch and Cilthriew estates, which then consisted of 27 farms, being sold in 1839 to Richard Leyland (Bullin), a very wealthy banker from Liverpool. Leyland was to give these estates, together with the Leighton Hall Estates to his nephew John Naylor in 1846. The very detailed survey of the estates purchased by Leyland and later John Naylor, drawn up by J W Poundley, is now in the National Library of Wales. John Naylor died on13th July 1889 and the estates continued in the Naylor family ownership until about 1930, when the various farms including Cilthriew were sold.

Example Output: b

Example Input: Question: Of the two bays the USS Lardner operated in, which had the largest land area? Passage:After patrol duty early in October, Lardner returned to escort duty between New Caledonia and the Solomons, then screened task forces operating out of Purvis Bay in the Bougainville Campaign. She bombarded Bougainville on 29 November, and continued occasional bombardments along with escort missions through January 1944. On 14 February, Lardner sailed north with TF 38 to cover initial landings on Green Island, and on the way was attacked by six Aichi D3A "Val" dive bombers. Late in February, the destroyer bombarded Rabaul; searched the Bismarck Sea for enemy shipping; and then attacked Karavia Bay, sinking an enemy cargo ship of the Heito Maru class 25 February. Later that day she bombarded Kavieng, receiving a few shrapnel holes from extremely heavy and accurate enemy return fire. During March and April, Lardner operated with support forces for the Palaus raid, and with escort carriers during the landing at Hollandia, New Guinea.

Example Output: a

Example Input: Question: How many albums were recorded by the host of the show Dougie Squires appeared on  Christmas Day 1969? Passage:In 1970, the troupe continued to appear on BBC2's Show Of The Week and other BBC series in which they appeared included Lulu at Berns Restaurant, A Royal Television Gala Performance, The British Screen Awards, The Rod McKuen Show and Fifty Years Of Music. On Christmas Day 1969, they appeared simultaneously on BBC1 and BBC2, starring in Christmas Night With The Stars, hosted by Val Doonican on BBC1 and in their own 'special' Jesus on BBC2. In January 1970, they were given their own self-titled BBC2 TV series, while concurrently running 'specials' on BBC1 included The Young Generation meet Lulu, The Young Generation meet Esther Ofarim and The Young Generation meet Shirley Bassey, Another regular series with Rolf Harris followed in 1970 and 1971 on BBC1 and on BBC2, they starred alongside Kenneth Williams in Meanwhile on BBC2. Later in 1971, they appeared with Vera Lynn in Show Of The Week and Don Lurio temporarily replaced Squires as the troupe's choreographer. Their next BBC series came in 1972 on BBC1 in Engelbert with The Young Generation starring Engelbert Humperdinck. In 1973, they starred alongside Vince Hill in BBC2's series They Sold A Million. The same year saw another series: The Young Generation Big Top, which featured Clodagh Rodgers, The Bachelors, Danny La Rue and Sandie Shaw. A second series of They Sold A Million aired in 1974, followed the same year by Ken Dodd's World Of Laughter on BBC1. Their last BBC series was The Musical Time Machine which aired on BBC2 in 1977. They continued to appear regularly with Vera Lynn on BBC shows, including A Jubilee Of Music in 1976.

Example Output:
b