(Paper tickets) can be hard.Logical formLearned from14 sentences. A mark can be hard.Logical formLearned from14 sentences. An uppercut can be hard.Logical formLearned from14 sentences. A field can be hard.Logical formLearned from14 sentences. A right-winger can be hard.Logical formLearned from14 sentences. Mortgages can be hard.Logical formLearned from14 sentences. Reforms can be hard.Logical formLearned from14 sentences. A wedge can be hard.Logical formLearned from14 sentences. A plane can be hard.Logical formLearned from14 sentences. A hard disk may undergo a partition.Logical formLearned from14 sentences. Proposals can be hard.Logical formLearned from14 sentences. Berries can be hard.Logical formLearned from14 sentences. An appeal can be hard.Logical formLearned from14 sentences. Someone may work hard.Logical formLearned from14 sentences. Cakes can be hard.Logical formLearned from14 sentences.