A difficulty can be a fact.Logical formLearned from17 sentences. Reminders may pertain-to difficulties.Logical formLearned from17 sentences. Difficulty may climb stairs.Logical formLearned from17 sentences. Difficulty may come to grips.Logical formLearned from17 sentences. Difficulties can be renewed.Logical formLearned from17 sentences. A difficulty may be solved.Logical formLearned from17 sentences. An illustration may show a difficulty.Logical formLearned from17 sentences. A military-or-other-action-organization may have difficulty.Logical formLearned from17 sentences. A combination can be constituted-of-or-filled-with difficulties.Logical formLearned from17 sentences. Difficulties can be with an approach.Logical formLearned from17 sentences. Difficulties can be with sleep.Logical formLearned from17 sentences. Users may experience difficulties.Logical formLearned from17 sentences. Difficulties can be with tasks.Logical formLearned from17 sentences. Difficulties may be expected.Logical formLearned from17 sentences. Reference can be to difficulties.Logical formLearned from17 sentences.