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'.

Ex Input:
Passage: Allen was born into a prominent Philadelphia family. His father, William Allen, was a successful merchant and lawyer, and would later be the Chief Justice of the Supreme Court of Pennsylvania. Andrew graduated from the City College of Philadelphia (later the University of Pennsylvania) in 1759, read law under Benjamin Chew, and then went to London to complete a legal education at the Inner Temple. He returned to Philadelphia in 1765, was admitted to the bar, and began to practice law. That same year Allen was elected to the Pennsylvania Assembly. In 1766, he was appointed the colony's Attorney General. He married Sarah ("Sally") Coxe, sister of Tench Coxe, in April 1768. In 1770 his brother-in-law, Governor John Penn, gave him a seat on the Governor's Council.
Link Information: none Question: How long did Andrew Allen serve as the Attorney General of Pennsylvania?

Ex Output:
Answer: none

Ex Input:
Passage: By the 1920s, SCGX was doubling annually and had emerged as the "fastest growing grain market in the world"; transacting 22 million bushels in 1928 (valued at $336 million in 2018), resulting from its location in the heart of the Corn Belt and self-imposed standards before the Grain Standards Act of 1916 including species admittance and non-mixing. However, its growth was limited by shipping rates. With the trucking industry and Interstate Highway System not yet developed, SCGX was constrained by monopolized railroad rates, primarily by the Great Northern Railway. Exhausting their bargaining power with the Interstate Commerce Commission, SCGX President Charles C. Flanley directed future lobbying efforts to unlocking barge navigation of the Missouri River. His initiative was stalled throughout the 1930s by the Great Depression and Dust Bowl. In 1938, a renewed thirteen year campaign led by Secretary William Henry Marriott finally opened commercial navigation of the Missouri River and helped establish the Missouri River Basin Project, which included development of the Gavins Point Dam. The alternate transportation succeeded in breaking the railroad's monopoly. By the 1970s, SCGX was among the largest exchanges in the world; transacting over 100 million bushels annually (valued at $1 billion as of 2018).
Link Information: The dam and hydroelectric power plant were constructed as the Gavins Point Project from 1952 to 1957 by the United States Army Corps of Engineers as part of the Pick-Sloan Plan Question: When was the dam that was part of the Missouri River Basin Project completed?

Ex Output:
Answer: 1957

Ex Input:
Passage: Following a year at Sandhurst, Evans entered the British Army with a commission in the Black Watch as second lieutenant on 23 December 1899, and served with the 2nd battalion in the Second Boer War in South Africa. He took part in operations in the Orange Free State February to May 1900, including the battles of Poplar Grove, Driefontein and Vet River; operations in the Transvaal May-June 1900, including the actions around Johannesburg, the occupation of Pretoria and the battle of Diamond Hill; and the battle of Battle of Belfast (August 1900). After the end of the conventional war he served with his battalion in the Orange River Colony during the Boer guerrilla warfare until peace was declared in June 1902. Following the end of the war in South Africa he left Point Natal for British India on the SS Ionian in October 1902 with other officers and men of his battalion, which after arrival in Bombay was stationed in Sialkot in Umballa in Punjab.. After service with his regiment in India, Evans returned to England and obtained a pilot's certificate.
Link Information: The British Raj (; from raj, literally, "rule" in Sanskrit and Hindustani) was the rule by the British Crown on the Indian subcontinent from 1858 to 1947 Question: How much time had passed between the establishment of British India and Evans' departure from South Africa after the Second Boer War?

Ex Output:
Answer: 44