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Biblical patriarch whose name means he will laugh, 4 letters

Singer who won the Nobel prize, 4 letters

Part 4 of quip, 12 letters

Part 4 of the quip, 15 letters

Twain quote continued, 13 letters

All I gotta do ___ naturally (Beatles lyric), 5 letters

And all I gotta do ___ naturally (Buck Owens lyric), 5 letters

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