An act can be hard.Logical formLearned from961 sentences. Days can be hard.Logical formLearned from955 sentences. A (tennis tournament) may be played on hard courts.Logical formLearned from944 sentences. Problems can be hard.Logical formLearned from926 sentences. A struggle can be hard.Logical formLearned from909 sentences. Work can be hard.Logical formLearned from889 sentences. A rule can be hard.Logical formLearned from882 sentences. A training can be hard.Logical formLearned from862 sentences. Nipples can be hard.Logical formLearned from857 sentences. Cocks can be hard.Logical formLearned from837 sentences. Hard courts can be indoor.Logical formLearned from833 sentences. A week can be hard.Logical formLearned from829 sentences. A body can be hard.Logical formLearned from827 sentences. Truths can be hard.Logical formLearned from805 sentences. A person may try hard.Logical formLearned from799 sentences.