This week, as NPR's Don Gonyea reports, one particular word emerged as a primary element of the White House effort.

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Facebook chat is another primary element of the Status, where a full-screen widget allows you to quickly communicate with other online acquaintances.

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Natural light is the primary design element, complemented by Japanese natural stone, light Myanmar oak, and dark maple.

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Generation of income account is a constituent element of primary distribution of income accounts.

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The device's primary source of neutron radiation was the radioactive element californium, but the stream of neutrons produced by the californium was multiplied by passing it through a lattice of highly enriched uranium U-235, whose nuclear fission released additional neutrons.

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The current test includes verbal and non-verbal reasoning, which are not taught in primary schools and need coaching but the new test may drop that element and place the emphasis on English and Maths, which are taught in classrooms, BBC South East Today's political correspondent John Young explained.

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Bioenergy is also a crucial element in the country's energy sector, supplying almost 20% of total primary energy consumption.

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