A mystery may pertain-to a mother.Logical formLearned from185 sentences. Mysteries may pertain-to a person.Logical formLearned from179 sentences. A whereabouts may remain a mystery.Logical formLearned from172 sentences. A key can be to a mystery.Logical formLearned from171 sentences. A fate may remain a mystery.Logical formLearned from168 sentences. A mystery may pertain-to the world.Logical formLearned from165 sentences. A mystery can be dark.Logical formLearned from165 sentences. A reason can be a mystery.Logical formLearned from163 sentences. An answer can be to a mystery.Logical formLearned from156 sentences. A mystery can be magical.Logical formLearned from156 sentences. A mystery may pertain-to persons.Logical formLearned from148 sentences. A mystery can be unsolved.Logical formLearned from146 sentences. A mystery can be intriguing.Logical formLearned from145 sentences. A mystery may pertain-to the universe.Logical formLearned from144 sentences. A solution can be to a mystery.Logical formLearned from143 sentences.