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 many years after Gene Haas formed his NASCAR Sprint Cup Series team did he form his Haas F1 Team? Passage:Several team changes took place before the season began. Haas F1 Team, a team formed by NASCAR Sprint Cup Series team owner Gene Haas, joined the Formula One grid, becoming the first American team to compete since the unrelated Haas Lola team competed in 1986. The team used power units supplied by Ferrari and a chassis developed by Dallara. Dallara had last participated in Formula One as the chassis manufacturer for HRT in . Renault returned to Formula One as a full factory-supported team after they purchased Lotus from Genii Capital, the venture capital firm they had originally sold the same team to in 2010, and supplied engines to up until the end of . Lotus's participation in the 2016 season was in question pending the resolution of a High Court case brought against the team by HM Revenue and Customs over unpaid PAYE tax.

Example Output: a

Example Input: Question: How many terms as a senator did Robert Kean's father serve? Passage:Kean was born September 28, 1893, in Elberon, New Jersey. His father, Hamilton Fish Kean (18621941), was a United States Senator from New Jersey and his son, Thomas Kean, served two terms as the Governor of New Jersey. Robert Kean was the great-great-grandson of John Kean, a Delegate to the Continental Congress from South Carolina (17561795). His uncle, John Kean (18521914), was also a United States Senator from New Jersey. His grandson, Thomas Kean, Jr., is presently the Minority Leader of the New Jersey State Senate. His mother, Katherine Taylor Winthrop (18661943), was a descendant of John Winthrop, a wealthy English Puritan lawyer and one of the leading figures in the founding of the Massachusetts Bay Colony, the first major settlement in what is now New England after Plymouth Colony. Winthrop led the first large wave of migrants from England in 1630 and served as governor for 12 of the colony's first 20 years of existence. Kean is also a descendant of William Livingston, the first Governor of New Jersey.

Example Output: b

Example Input: Question: What coach did Duan Ju play for on the Japanese team? Passage:Duan Ju was born in Tianjin. At the age of 17, he was called up to China youth football team. Duan Ju played for Tianjin football Team 2 from 1980 to 1983. From 1984 to 1991, Duan Ju played for Tianjin. In 1988, Duan Ju played for China in the 1988 Asian Cup and football match at the 1988 Olympic Games. In 1990, China lost to Thailand in football match at the 1990 Asian Games. The coach of China, Gao Fengwen quit office, then Duan Ju quit the China national team and returned to Tianjin. in 1992, Duan Ju had gone to Japan and played for NKK SC. In 1993, Duan Ju retired in Japan and returned to China. In 1995, Duan Ju played for Tianjin Yuancheng football club, in the same year, Duan Ju retired again.

Example Output:
a