An ascent can be difficult.Logical formLearned from47 sentences. A face can be difficult.Logical formLearned from47 sentences. A paper can be difficult.Logical formLearned from47 sentences. Stretches can be difficult.Logical formLearned from47 sentences. An option can be difficult.Logical formLearned from47 sentences. A passage can be difficult.Logical formLearned from47 sentences. A math can be difficult.Logical formLearned from47 sentences. An exercise can be difficult.Logical formLearned from47 sentences. A question can be difficult.Logical formLearned from47 sentences. Gains can be difficult.Logical formLearned from47 sentences. Food can be difficult.Logical formLearned from47 sentences. An attempt can be difficult.Logical formLearned from47 sentences. Competition can be difficult.Logical formLearned from47 sentences. A step can be difficult.Logical formLearned from47 sentences. An outlook can be difficult.Logical formLearned from47 sentences.