A lesson can be for countries.Logical formLearned from18 sentences. (Piano lessons) can be weekly.Logical formLearned from18 sentences. A lesson can be in a difference.Logical formLearned from18 sentences. Lessons may be learnt from events.Logical formLearned from18 sentences. A lesson can be enjoyable.Logical formLearned from18 sentences. A (lesson plan) can be written.Logical formLearned from18 sentences. A lesson can be important.Logical formLearned from18 sentences. Lessons can be in geography.Logical formLearned from18 sentences. A curriculum may include lessons.Logical formLearned from18 sentences. Lessons may be learnt from countries.Logical formLearned from18 sentences. Persons may learn from lessons of the past.Logical formLearned from18 sentences. Lessons may pertain-to an effort.Logical formLearned from18 sentences. A lesson of years can be that something-is-the-case.Logical formLearned from18 sentences. A lesson can be heavy.Logical formLearned from18 sentences. A lesson can be from resistance.Logical formLearned from18 sentences.