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Use "underpinnings" in a sentence
"When you feel like a world you create has solid underpinnings is it easier to write than something that feels like it's written on quicksand, or harder because it feels constrained?"
"After such a large move, stocks typically enjoy a mix of follow-through buying, turnaround selling by investors looking to book a quick profit and, in general, a round of reflection among participants trying to figure out how the long-term underpinnings of the market have shifted."
"So the Liberals are supporting a measure in the Senate which protects the buyers of luxury cars, half a billion dollars worth, while we're in the business of reforming the long term underpinnings of the age pension."