A (bomb explosion) can be mysterious.Logical formLearned from4 sentences. A (poisoning case) can be mysterious.Logical formLearned from4 sentences. (Shark attacks) can be mysterious.Logical formLearned from4 sentences. A seepage can be mysterious.Logical formLearned from4 sentences. A (mass poisoning) can be mysterious.Logical formLearned from4 sentences. A (love story) can be mysterious.Logical formLearned from4 sentences. A (love affair) can be mysterious.Logical formLearned from4 sentences. A black lake can be mysterious.Logical formLearned from4 sentences. Sculptures can be mysterious.Logical formLearned from4 sentences. A high can be mysterious.Logical formLearned from4 sentences. (Hand signals) can be mysterious.Logical formLearned from4 sentences. A strike can be mysterious.Logical formLearned from4 sentences. A sojourn can be mysterious.Logical formLearned from4 sentences. A play can be mysterious.Logical formLearned from4 sentences. A (computer infection) can be mysterious.Logical formLearned from4 sentences.