In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

[EX Q]: Question: What age was Ferdinand I the year Viseu fell? Passage:The history of the county of Portugal is traditionally dated from the reconquest of Portus Cale (Porto) by Vimara Peres in 868. He was named a count and given control of the frontier region between the Limia and Douro rivers by Alfonso III of Asturias. South of the Douro, another border county would be formed decades later when what would become the County of Coimbra was conquered from the Moors by Hermenegildo Guterres. This moved the frontier away from the southern bounds of the county of Portugal, but it was still subject to repeated campaigns from the Caliphate of Cordoba. The recapture of Coimbra by Almanzor in 987 again placed the County of Portugal on the southern frontier of the Leonese state for most of the rest of the first county's existence. The regions to its south were only again conquered in the reign of Ferdinand I of Leon and Castile, with Lamego falling in 1057, Viseu in 1058 and finally Coimbra in 1064.

[EX A]: The regions to its south were only again conquered in the reign of Ferdinand I of Leon and Castile, with Lamego falling in 1057, Viseu in 1058 and finally Coimbra in 1064

[EX Q]: Question: Of Sluyter's interests, when did the event which led to America being populated by Europeans occur? 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, 15001900 (Yale University Press, 2012) and a 201213 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.

[EX A]: His interests are the environmental history and historical, cultural, and political ecology of the colonization of the Americas

[EX Q]: Question: When did the television programme on Channel Four where The Proclaimers made an appearance first come on the air? Passage:The pair came to public attention when an Inverness-based fan sent their demo to the English band the Housemartins, who were impressed enough to invite the Proclaimers on their 1986 United Kingdom tour. The exposure of the tour won them a January 1987 appearance on the British pop music television programme The Tube on Channel Four; "Letter from America" peaked at number three in the UK Singles Chart, while the album This Is the Story went gold. The follow-up album Sunshine on Leith featured the singles "I'm Gonna Be (500 Miles)", which went to number one in Australia and New Zealand, and "I'm On My Way". They had a hit with their EP King of the Road, which reached number nine in the UK in 1990. "I'm Gonna Be (500 Miles)" belatedly peaked at number three on the Billboard Hot 100 in August 1993, after appearing in the movie Benny & Joon, becoming their only charted single in the United States. After seven low-profile years, they released their comeback album Persevere in 2001.

[EX A]:
The exposure of the tour won them a January 1987 appearance on the British pop music television programme The Tube on Channel Four; "Letter from America" peaked at number three in the UK Singles Chart, while the album This Is the Story went gold