A grave can be mysterious.Logical formLearned from4 sentences. Instruments can be mysterious.Logical formLearned from4 sentences. An alignment can be mysterious.Logical formLearned from4 sentences. An excursion can be mysterious.Logical formLearned from4 sentences. A question can be mysterious.Logical formLearned from4 sentences. A mysterious woman can be with proof of (intelligence involvement).Logical formLearned from4 sentences. A contractor can be mysterious.Logical formLearned from4 sentences. Silences can be mysterious.Logical formLearned from4 sentences. An alien spacecraft can be mysterious.Logical formLearned from4 sentences. A merchant can be mysterious.Logical formLearned from4 sentences. A nut can be mysterious.Logical formLearned from4 sentences. Scribblings can be mysterious.Logical formLearned from4 sentences. A (killer fungus) can be mysterious.Logical formLearned from4 sentences. A back story can be mysterious.Logical formLearned from4 sentences. A (sneaker print) can be mysterious.Logical formLearned from4 sentences.