In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[Q]: Passage: Getty Square is Yonkers' downtown and the civic center and central business district of the city. Much of southwest Yonkers grew densely along the multiple railroads and trolley (now bus) lines along South Broadway and in Getty Square, connecting to New York City. Clusters of apartment buildings surrounded the stations of the Yonkers branch of the New York and Putnam Railroad and the Third Avenue Railway trolley lines and these buildings still remain although now served by the Bee-Line Bus System. The railroad companies themselves built neighborhoods of mixed housing types ranging from apartment buildings to large mansions in areas like Park Hill wherein the railroad also built a funicular to connect it with the train station in the valley. This traditionally African-American and white area has seen a tremendous influx of immigrants from Mexico, Central America, the Caribbean, South Asia, and the Middle East. Off South Broadway and Yonkers Avenue one can find residential neighborhoods, such as Lowerre, Nodine Hill, Park Hill, and Hudson Park (off the Hudson River) with a mix of building styles ranging from dense clusters of apartment buildings, blocks of retail with apartments above, multifamily row houses, and detached single-family homes.
 Link Information: etty Square's two oldest, still-standing buildings, Philipse Manor Hall (circa 1682) and St. John's Protestant Episcopal Church (built 1752 by Frederick Philipse III),  Question: When was Yonkers's civic center established?
[A]: Answer: 1752 


[Q]: Passage: The Yardbirds are an English blues rock band from London. Formed in May 1963, the group originally included lead vocalist Keith Relf, lead guitarist Anthony "Top" Topham, rhythm guitarist Chris Dreja, bassist Paul Samwell-Smith and drummer Jim McCarty. In October, Topham was replaced by Eric Clapton. He remained until 13 March 1965, when he left due to creative disagreements. Clapton recommended Jimmy Page to replace him, but he declined and Jeff Beck took over. Page later joined on bass the following June, after Samwell-Smith abruptly quit; Dreja later took over the role, allowing Page to join Beck on guitar. This lineup was short-lived, however, as Beck left in November 1966. The group continued as a four-piece until July 1968, when Relf and McCarty left due to creative differences, primarily with Page. Dreja initially remained, but by August Page formed a new group with vocalist Robert Plant, bassist John Paul Jones and drummer John Bonham, who later renamed themselves Led Zeppelin.
 Link Information: who later renamed themselves Led Zeppelin. Question: In what year did the Yardbirds rename themselves Led Zeppelin?
[A]: Answer: 1968


[Q]: Passage: Waller was born on July 17, 1846. His parents were David Jewett Waller Sr. and Julia Ellmaker Waller. He was their fifth child. When young he was educated at Bloomsburg. After that he went to a classical school in a local Primitive Methodist Episcopal Church. When Waller was fourteen he was sent to a school run by Revered Gayley in the community of Media. In 1861, at the age of 15, he went to Williams College's preparatory department. However, due to sickness his education ceased for three years. In 1867, he was among the first people to graduate from the Bloomsburg Literary Institute. Waller went to Lafayette College in the autumn of 1867. He did well there and graduated from there with a Bachelor of Arts degree in 1870 and a Master of Arts degree in 1873. From 1870 to 1871 he trained to be and served as a tutor in Latin and Greek. While at Lafayette College he also won the Fowler Prize, a prize of $30 granted for excellence in English philology. Waller attended the Princeton Theological Seminary from 1871 to 1872, then switched to the Union Theological Seminary and graduated from that in 1874. He received an honorary Ph.D from Lafayette College in 1880 and received a Doctor of Divinity degree from Ursinus College in 1892. Juniata College granted Waller an honorary Doctor of Laws degree in 1934.
 Link Information: David Jewett Waller Sr. (January 26, 1815 – December 7, 1893)  Question: How old was David Jewett Waller Sr. when his son David was born?
[A]:
Answer: 31