A legal battle can be arduous.Logical formLearned from13 sentences. Work can be arduous.Logical formLearned from12 sentences. Procedures can be arduous.Logical formLearned from12 sentences. A task can be arduous.Logical formLearned from12 sentences. Travel can be arduous.Logical formLearned from12 sentences. Activities can be arduous.Logical formLearned from12 sentences. A set can be arduous.Logical formLearned from12 sentences. Pleasures can be arduous.Logical formLearned from12 sentences. Schedules can be arduous.Logical formLearned from12 sentences. An adventure can be arduous.Logical formLearned from12 sentences. Tasks can be arduous.Logical formLearned from12 sentences. (Coalition talks) can be arduous.Logical formLearned from12 sentences. Preparations can be arduous.Logical formLearned from11 sentences. A profession can be arduous.Logical formLearned from11 sentences. A regulation can be arduous.Logical formLearned from11 sentences.