e.g. The Canadian flag has a red maple leaf on it.
e.g. She had begun to flag after spending all day walking around in the sun.
e.g. The banner flags on the wall, on the verge of falling.
e.g. He flagged the train down to a sharp stop.
e.g. He flagged problems in the code so that I could go back and correct them before finally submitting.
e.g. He was flagged for pushing an opponent player while dribbling the ball.
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