Mysteries may pertain-to pyramids.Logical formLearned from10 sentences. A mystery can be macabre.Logical formLearned from10 sentences. Mysteries can be murky.Logical formLearned from10 sentences. A cause of an outage may remain a mystery.Logical formLearned from10 sentences. A (mystery illness) may kill some persons.Logical formLearned from10 sentences. A (mystery illness) may kill some persons.Logical formLearned from10 sentences. A ship may remain a mystery.Logical formLearned from10 sentences. A clue can be to a mystery.Logical formLearned from10 sentences. A mystery of work can be a great mystery.Logical formLearned from10 sentences. A person may pluck_out a heart of a mystery.Logical formLearned from10 sentences. Mystery may surround a death.Logical formLearned from10 sentences. Mysteries may pertain-to aviation.Logical formLearned from10 sentences. A mystery may pertain-to a demise.Logical formLearned from10 sentences. A (cargo ship) may spark a mystery.Logical formLearned from10 sentences. A (mystery facility) may be bombed by a country.Logical formLearned from10 sentences.