He shuffles arthritically around his castle, and when he rises from his coffin he's as stiff as an ironing board.
Whenever he spends time in his coffin, he emerges feeling flexible and energetic.
mnli hypothesis: Whenever he spends time in his coffin, he emerges feeling flexible and energetic. premise: He shuffles arthritically around his castle, and when he rises from his coffin he's as stiff as an ironing board.