A teacher can be hard.Logical formLearned from71 sentences. A lobbying can be hard.Logical formLearned from71 sentences. Snow can be hard.Logical formLearned from71 sentences. A hard line can be toward a country.Logical formLearned from71 sentences. A difference can be hard.Logical formLearned from71 sentences. Persons may have a hard evidence.Logical formLearned from71 sentences. A logo can be hard.Logical formLearned from70 sentences. Results can be hard.Logical formLearned from70 sentences. Computers may store information on a hard drive.Logical formLearned from70 sentences. Persons can be hard.Logical formLearned from70 sentences. A man can be hard.Logical formLearned from70 sentences. Decisions can be hard.Logical formLearned from70 sentences. A distinction can be hard.Logical formLearned from70 sentences. A hard work can be for a person.Logical formLearned from70 sentences. A requirement can be hard.Logical formLearned from70 sentences.