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: Relations between the people of Afghanistan and India traces to the Indus Valley Civilisation. Following Alexander the Great's brief occupation, the successor state of the Seleucid Empire controlled the region known today as Afghanistan. In 305 BCE, they ceded much of it to the Indian Maurya Empire as part of an alliance treaty. The Mauryans brought Buddhism from India and controlled the area south of the Hindu Kush. Their decline began 60 years after Ashoka's rule ended, leading to the Hellenistic reconquest of the region by the Greco-Bactrians. Much of it soon broke away from the Greco-Bactrians and became part of the Indo-Greek Kingdom. The Indo-Greeks had been defeated and expelled by the Indo-Scythians in the late 2nd century BCE. Much of Afghanistan has been influenced by Buddhist, Hindu and Zoroastrian cultures until the arrival of Islam in the 7th century. But despite many Afghans converting to Islam, the Muslims and Hindus lived side by side.
 Link Information: According to the Sri Lankan texts Mahavamsa and the Dipavamsa, Ashoka ascended the throne 218 years after the death of Gautama Buddha, and ruled for 37 years. Question: How many years did the Ashoka's rule?
[A]: Answer: 37


[Q]: Passage: The Lookout Mountain Incline Railway is a inclined plane funicular railway leading to the top of Lookout Mountain from the historic St. Elmo neighborhood of Chattanooga, Tennessee. Passengers are transported from St. Elmo's Station at the base, to Point Park at the mountain summit, which overlooks the city and the Tennessee River. It is just a short drive to three of Chattanooga's main tourist attractions, Ruby Falls, Cavern Castle, and Rock City. The railway is approximately in length (single-track except for a short two-track passing loop at the midway point, allowing operation of two cars at one time). It has a maximum grade of 72.7%, making it one of the world's steepest passenger railways. It obtained Historic Mechanical Engineering Landmark status in 1991. The cable system for the cars was made by the Otis Elevator Company.
 Link Information:  The company pioneered the development of the "safety elevator", invented by Otis in 1852, which used a special mechanism to lock the elevator car in place should the hoisting ropes fail.
 Question: In what year did the Otis Elevator Company first use the cable system for their railway cars?
[A]: Answer: 1852


[Q]: Passage: The ZOO Bratislava () is a zoo in Bratislava, Slovakia. It is located in the area of Mlynská dolina in the borough of Karlova Ves on the slopes of the forested hills of Little Carpathians. As of 2016, the zoo has an area of out of which is open to the public, and is home to over 900 specimens of 175 animal species. The zoo receives on average 300,000 visitors annually. It is the only zoo in Bratislava, it is accessible by car with a dedicated parking lot or by public transport (bus stop ZOO) and it is open every day of the year. Major attractions include white lions, white tigers and DinoPark, featuring moving life-sized sculptures of dinosaurs. Out of the 5 major zoos in Slovakia, ZOO Bratislava is the second oldest, second largest and second most visited. ZOO Bratislava was one of the first zoos in Europe that was successful in breeding Eurasian lynx in captivity.
 Link Information: Bratislava (, , ; or ; ) is the capital of Slovakia. With a population of about 430,000, it is one of the smaller capitals of Europe but still the country's largest city.  Question: What is the difference in population between the country and the city that the zoo is located in?
[A]:
Answer: 5.2