A (mystery writer) may pertain-to a country.Logical formLearned from15 sentences. A cause of an accident may remain a mystery.Logical formLearned from15 sentences. A whereabouts may become a mystery.Logical formLearned from15 sentences. Mysteries can be best-selling.Logical formLearned from15 sentences. A mystery may pertain-to an incident.Logical formLearned from15 sentences. A female may solve a mystery.Logical formLearned from14 sentences. A (mystery film) may pertain-to a language.Logical formLearned from14 sentences. A mystery can be popular.Logical formLearned from14 sentences. A name may remain a mystery.Logical formLearned from14 sentences. A mystery may pertain-to murders.Logical formLearned from14 sentences. An answer can be to a mystery.Logical formLearned from14 sentences. A mystery can be to fans.Logical formLearned from14 sentences. A mystery can be hardy.Logical formLearned from14 sentences. Mysteries can be insoluble.Logical formLearned from14 sentences. A story can be constituted-of-or-filled-with mystery.Logical formLearned from14 sentences.