A hard drive can be built-in.Logical formLearned from195 sentences. A hard drive may fail.Logical formLearned from194 sentences. Tasks can be hard.Logical formLearned from194 sentences. A nipple can be hard.Logical formLearned from193 sentences. A situation can be hard.Logical formLearned from193 sentences. Places can be hard.Logical formLearned from192 sentences. A campaign can be hard.Logical formLearned from191 sentences. A wall can be hard.Logical formLearned from188 sentences. A lemonade can be hard.Logical formLearned from188 sentences. A book can be hard.Logical formLearned from187 sentences. A crash can be hard.Logical formLearned from186 sentences. A male may get hard.Logical formLearned from184 sentences. A chest can be hard.Logical formLearned from184 sentences. A (spring wheat) can be hard.Logical formLearned from184 sentences. A stand can be hard.Logical formLearned from182 sentences.