A mystery may pertain-to an origin.Logical formLearned from61 sentences. A mystery may pertain-to a cross.Logical formLearned from61 sentences. A world can be constituted-of-or-filled-with mystery.Logical formLearned from60 sentences. Mysteries may pertain-to the universe.Logical formLearned from60 sentences. Mysteries may pertain-to the past.Logical formLearned from59 sentences. A cause may remain a mystery.Logical formLearned from59 sentences. (Mystery plays) can be medieval.Logical formLearned from58 sentences. A mystery may surround a male.Logical formLearned from58 sentences. A mystery can be medieval.Logical formLearned from57 sentences. A (mystery series) can be popular.Logical formLearned from57 sentences. A mystery can be international.Logical formLearned from56 sentences. A mystery can be genuine.Logical formLearned from56 sentences. A (mystery man) may pertain-to a female.Logical formLearned from56 sentences. Mysteries may pertain-to history.Logical formLearned from56 sentences. A mystery can be to a person.Logical formLearned from56 sentences.