A puzzle can be that something-is-the-case.Logical formLearned from61 sentences. A major piece may pertain-to a puzzle.Logical formLearned from60 sentences. A key can be to a puzzle.Logical formLearned from59 sentences. Puzzles can be environmental.Logical formLearned from59 sentences. Some pieces can be to a puzzle.Logical formLearned from59 sentences. A puzzle may be solved.Logical formLearned from59 sentences. A person may solve a puzzle.Logical formLearned from57 sentences. Parts may pertain-to a puzzle.Logical formLearned from55 sentences. A puzzle can be wooden.Logical formLearned from55 sentences. A puzzle may pertain-to a life.Logical formLearned from54 sentences. Pieces of a puzzle may fall into place.Logical formLearned from54 sentences. A puzzle can be hard.Logical formLearned from54 sentences. A person can be a puzzle.Logical formLearned from53 sentences. A set can be constituted-of-or-filled-with puzzles.Logical formLearned from52 sentences. Puzzles can be philosophical.Logical formLearned from51 sentences.