A person may understand a challenge.Logical formLearned from49 sentences. A son may understand.Logical formLearned from49 sentences. A male may understand power.Logical formLearned from49 sentences. A person may understand a condition.Logical formLearned from49 sentences. A person may understand a hatred.Logical formLearned from49 sentences. Persons may understand a world.Logical formLearned from49 sentences. A female may understand a reason.Logical formLearned from49 sentences. A principle may be understood.Logical formLearned from49 sentences. A male may understand a criticism.Logical formLearned from49 sentences. Persons may understand a history.Logical formLearned from49 sentences. A person may understand enthusiasm.Logical formLearned from48 sentences. Businesses may understand.Logical formLearned from48 sentences. A person may understand costs.Logical formLearned from48 sentences. Somebody may understand that something-is-the-case.Logical formLearned from48 sentences. A person may understand a job.Logical formLearned from48 sentences.