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: How long was Robert in the Parliament? Passage:Richard Bennet (d.1619), a Councillor at Law, built Hexworthy House as his seat within the parish. The Bennet family originated in Sussex and settled at Hexworthy during the reign of Queen Elizabeth I (1558-1603). His son was Col. Robert Bennet (1605–1683) of Hexworthy, a Member of Parliament during the Civil War and a noted commander of the Parliamentarian forces. His descendant Richard Bennett-Coffin (d.1796) was the son of Edward Bennett of Lawhitton by his wife Honor Coffin (born 1682), 11th daughter of Richard Coffin (1623-1700) of Portledge in the parish of Alwington in North Devon, lord of the manor of Alwington and Sheriff of Devon in 1683. Richard Bennett-Coffin (d.1796) became heir to the Coffin estates following the death of his childless uncle Richard Coffin (1684-1766). The Coffin family had been established at Alwington since the reign of King Henry II (1154-1189), and remained there in unbroken male succession until 1766. He adopted the name and arms of Coffin, but died without progeny at Esher in Surrey and was buried at Lawhitton where survives his monument. His heir was Rev. John Pine-Coffin (1735-1824), eldest surviving grandson of Dorothy Coffin (1651-1690), eldest daughter of Richard Coffin (1623-1700), who in 1672 married Edward Pyne (1648-1675) of East Down. Her descendants remained seated at East Down manor house until 1866, the Pyne family having occupied it since the 13th century. The last in the Pine-Coffin family to occupy Portledge manor house was Richard Geoffrey Pine-Coffin (1908-1974).

Example Output: a

Example Input: Question: Which opera house Easterlin has performed in during his career is the oldest? Passage:Easterlin received his Bachelor of Music degree from the University of Miami and his Bachelor of Science degree from Florida International University, and after a successful career in corporate advertising, began his performing career in musical theatre before moving into opera. He went on to perform at many of America's leading opera houses and festivals, including the Lyric Opera of Chicago, San Francisco Opera, Los Angeles Opera, Seattle Opera, New York City Opera, Dallas Opera, the Opera Company of Philadelphia, the Ravinia Festival with the Chicago Symphony conducted by Daniel Barenboim for the opening night of the Centennial Season, and Spoleto Festival USA in a new production of Ariadne auf Naxos conducted by Emmanual Villaume. He made his debut at the Glimmerglass Opera Festival in the summer of 2009 as 'The Magician' in a new production of Menotti's The Consul. According to Opera News, Easterlin spent 200 hours learning magic tricks for this production, which included producing a live rabbit on stage. Another unusual role for him was Houston Grand Opera's 2006 all-puppet production of Humperdinck's opera Hansel and Gretel in which he sang the role of the Witch as well as operating her twelve-foot high puppet.

Example Output: a

Example Input: Question: Where else are Chemokine receptors found? Passage:Chemokine receptors are G protein-coupled receptors containing 7 transmembrane domains that are found predominantly on the surface of leukocytes, making it one of the rhodopsin-like receptors. Approximately 19 different chemokine receptors have been characterized to date, which share many common structural features; they are composed of about 350 amino acids that are divided into a short and acidic N-terminal end, seven helical transmembrane domains with three intracellular and three extracellular hydrophilic loops, and an intracellular C-terminus containing serine and threonine residues that act as phosphorylation sites during receptor regulation. The first two extracellular loops of chemokine receptors are linked together by disulfide bonding between two conserved cysteine residues. The N-terminal end of a chemokine receptor binds to chemokine(s) and is important for ligand specificity. G-proteins couple to the C-terminal end, which is important for receptor signaling following ligand binding. Although chemokine receptors share high amino acid identity in their primary sequences, they typically bind a limited number of ligands. Chemokine receptors are redundant in their function as more than one chemokine is able to bind to a single receptor.

Example Output:
b