A lesson may show that something-is-the-case.Logical formLearned from7 sentences. Lessons may be learnt from failures.Logical formLearned from7 sentences. A person may teach persons a lesson.Logical formLearned from7 sentences. Lessons can be permanent.Logical formLearned from7 sentences. Hard lessons may learn.Logical formLearned from7 sentences. Lessons can be from leaders.Logical formLearned from7 sentences. A lesson may be learnt from a project.Logical formLearned from7 sentences. A lesson may pertain-to a kind.Logical formLearned from7 sentences. Lessons can be by a female.Logical formLearned from7 sentences. A lesson may pertain-to a scientist.Logical formLearned from7 sentences. Lessons may undergo a presentation.Logical formLearned from7 sentences. Lessons can be about values.Logical formLearned from7 sentences. Lessons may be explored.Logical formLearned from7 sentences. A lesson may play_out itself.Logical formLearned from7 sentences. Lessons may be learnt from experiments.Logical formLearned from7 sentences.