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'.

Passage: Andrew Sluyter is an American social scientist who currently teaches as a professor in the Geography and Anthropology Department of the Louisiana State University in Baton Rouge. His interests are the environmental history and historical, cultural, and political ecology of the colonization of the Americas. He has made various contributions to the theorization of colonialism and landscape, the critique of neo-environmental determinism, to understanding pre-colonial and colonial agriculture and environmental change in Mexico, to revealing African contributions to establishing cattle ranching in the Americas, and to the historical geographies of Hispanics and Latinos in New Orleans. With the publication of Black Ranching Frontiers: African Cattle Herders of the Atlantic World, 1500–1900 (Yale University Press, 2012) and a 2012–13 Digital Innovation Fellowship from the American Council of Learned Societies, he has joined a growing number of scholars from multiple disciplines working from the perspective of Atlantic History and using the tools of the Digital Humanities. His latest book, Hispanic and Latino New Orleans: Immigration and Identity since the Eighteenth Century (LSU Press, 2015), co-authored with Case Watkins, James Chaney, and Annie M. Gibson, was awarded the 2015 John Brinckerhoff Jackson Book Prize by the American Association of Geographers.
 Link Information: Baton Rouge was incorporated in 1817.  Question: When was the city founded that houses the university Sluyter teaches in?
Answer: 1817

Passage: Babbal Rai (born 3 March 1985) is an Indian Punjabi singer, songwriter and film actor. His real birth name is Simranjeet Singh Rai. Born in Samrala, a city in the Ludhiana district of Punjab, India, He belongs to a Rai Sikh Family and he graduated from DAV College, has always enjoyed a passion towards cricket.He was trained by Yograj Singh (father of Yuvraj Singh) and aspired to be a cricketer, later he moved to Melbourne where he uploaded a video called "Australian Challa" which made him a YouTube sensation. Later the adopted version of the song was released in the Bollywood movie Crook. He rose to fame from the song Nikki Jehi Jind. He also starred in the film Mr & Mrs 420, along with Jassi Gill and Binnu Dhillon
 Link Information: Samrala had population of 19,678 Question: What is the largest city in the district where Rai was born?
Answer: Punjab 

Passage: Columbia, formerly Wright's Ferry, is a borough (town) in Lancaster County, Pennsylvania, 28 miles (45 km) southeast of Harrisburg on the east (left) bank of the Susquehanna River, across from Wrightsville and York County and just south of U.S. Route 30. The settlement was founded in 1726 by Colonial English Quakers from Chester County led by entrepreneur and evangelist John Wright. Establishment of the eponymous Wright's Ferry, the first commercial Susquehanna crossing in the region, inflamed territorial conflict with neighboring Maryland but brought growth and prosperity to the small town, which was just a few votes shy of becoming the new United States' capital. Though besieged for a short while by Civil War destruction, Columbia remained a lively center of transport and industry throughout the 19th century, once serving as a terminus of the Pennsylvania Canal. Later, however, the Great Depression and 20th-century changes in economy and technology sent the borough into decline. It is notable today as the site of one of the world's few museums devoted entirely to horology.
 Link Information: As of the 2010 census, the population was 519,445. Question: What is the current population of the county where Columbia, PA is located?

Answer: 519,445