A bargaining can be hard.Logical formLearned from1 174 sentences. A choice can be hard.Logical formLearned from1 160 sentences. A cover can be hard.Logical formLearned from1 132 sentences. An edge can be hard.Logical formLearned from1 113 sentences. A problem can be hard.Logical formLearned from1 108 sentences. A game can be hard.Logical formLearned from1 088 sentences. Rules can be hard.Logical formLearned from1 084 sentences. A ground can be hard.Logical formLearned from1 082 sentences. A floor can be hard.Logical formLearned from1 044 sentences. Features may include some hard drive.Logical formLearned from1 023 sentences. Hard courts can be outdoor.Logical formLearned from1 012 sentences. A fight can be hard.Logical formLearned from1 006 sentences. An information can be hard.Logical formLearned from998 sentences. Plastic can be hard.Logical formLearned from995 sentences. (Wood floors) can be hard.Logical formLearned from964 sentences.