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: Of the grasses that the essex skipper eats, which is the longest? Passage:Eggs are laid in strings on the stems of grasses where they remain over the winter. The Essex skipper's favoured foodplant is cock's-foot (Dactylis glomerata), and it rarely uses the small skipper's favoured foodplant Yorkshire fog. Essex skippers' other foods include creeping soft grass (Holcus mollis), couch grass (Elymus repens), timothy-grass (Phleum pratense), meadow foxtail (Alopecurus pratensis), false brome (Brachypodium sylvaticum) and tor-grass (Brachypodium pinnatum). This skipper's caterpillars emerge in the spring and feed until June before forming shelters from leaves tied with silk at the base of the foodplant to pupate. Adults fly from July through August. Like most skippers, they are fairly strictly diurnal, though individuals are very rarely encountered during the night.

Example Output: a

Example Input: Question: Did Melville's wife die before his father? Passage:He was born in Edinburgh on 14 March 1771, the only son of Henry Dundas, 1st Viscount Melville, and his first wife, the former Elizabeth Rannie (1751–1843). Educated at the Royal High School, Edinburgh, he went in 1786 with his tutor John Bruce on a continental tour and enrolled at Göttingen University. He studied afterwards at the University of Edinburgh and at Emmanuel College, Cambridge, and was admitted at Lincoln's Inn in 1788. After a successful attempt at law he became his father's private secretary from 1794, though he was brought in as MP for Hastings in 1794, and then Rye in 1796. The same year, on 29 August, he married an heiress, Anne Saunders (died 10 Sept 1841), and took her name beside his own. They had four sons and two daughters; their eldest son, Henry Dundas, later third Viscount Melville, became an army officer while their second son, Richard Saunders Dundas, became First Naval Lord.

Example Output: b

Example Input: Question: Did Swan play in more games for Hull City or Port Vale? Passage:He began his career with local side Leeds United in 1984, before he moved on to Hull City for £200,000 in 1989. Two years later he transferred to Port Vale for a fee of £300,000. He spent three years with Vale, before he was sold on to Plymouth Argyle for the same price. During his time at Vale Park he was selected in the PFA's Second Division team of the season in 1992–93, before he won promotion out of the division in 1993–94; he also won the TNT Tournament in 1992 and the Football League Trophy in 1993 with the club. However at Plymouth he failed to find success, and was instead transferred to Burnley for £200,000 after just twelve months. In 1997, he signed with Bury for £50,000, before he returned to Burnley as a free transfer signing the following year. In 2000, he joined York City, before he retired later in the year.

Example Output:
a