A dollar can be hard.Logical formLearned from36 sentences. A response can be hard.Logical formLearned from36 sentences. Storage can be on hard drives.Logical formLearned from36 sentences. Information can be on hard drives.Logical formLearned from36 sentences. Bricks can be hard.Logical formLearned from36 sentences. Persons can be hard at work.Logical formLearned from36 sentences. A commitment can be hard.Logical formLearned from36 sentences. Abs can be hard.Logical formLearned from36 sentences. Lessons can be hard.Logical formLearned from36 sentences. A hard drive can be integrated.Logical formLearned from36 sentences. A town can be hard.Logical formLearned from36 sentences. A hole can be hard.Logical formLearned from36 sentences. An one-hopper can be hard.Logical formLearned from36 sentences. A pain can be hard.Logical formLearned from36 sentences. A group can be hard.Logical formLearned from36 sentences.