Below the 68ft-tall Cumberland Falls, about 110 miles south of Lexington in Cumberland Falls State Park, there are simple places to practice white water rafting -- most of the rapids are Class II or Class III, and the rapids are well spaced out.

BBC: Adventure travel in eastern Kentucky

One or two people have got to cement their places, use it as very good practice, both mentally and physically and for their skills.

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The extent of the shortage of dentists in some areas of rural Wales became evident in July 2003, when 600 people queued to take up NHS places on offer at a new practice in Carmarthen.

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Even legislatures are tricky places in which to devise rules for what will remain an essentially private practice.

ECONOMIST: The right to choose to die

Nonetheless, some Americans hang on to their weapons because they enjoy hunting or target practice, or live in places with too many wild animals or too few policemen.

ECONOMIST: Despite legislative victories, the NRA is under pressure

In practice, that means training Afghan soldiers, training Afghan trainers, and building the places to train them in.

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