In this task, you're given a statement, 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: Context: The main effort, or schwerpunkt, would consist of XLVII Panzer Corps and LVIII Panzer Corps advancing west across the River Our at Ouren from the south or left flank of the German army front. They would then occupy the transportation center of Bastogne, before crossing the Meuse River at Namur. Link Information: The Our (; , ) is a river in Belgium, Luxembourg and Germany. It is a left-hand tributary of the river Sauer/Sûre. Its total length is 78 km Question: Which of the two rivers the Panzer Corps crossed was larger?

A: Answer: 

The Meuse
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Q: Context: They continued to sail to the Isla Aves and Islas Roques where they remained until February 1682. Link Information:  It is 375 m in length and never more than 50 m in width Question: Which is the larger of the two islands where they remained until February 1682?

A: Answer: Islas Roques
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Q: Context: The 1986 Chernobyl nuclear accident contaminated about 30,000 km with greater than 10 kBq/m with Sr, which accounts for 5% of the core inventory of Sr. Link Information: In the accident's aftermath, 237 people suffered from acute radiation sickness, of whom 31 died within the first three months. Question: How many people died in the incident that contaminated about 30,000 km? 

A:
Answer: it is roughly estimated that cancer deaths caused by Chernobyl may reach a total of about 4,000
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