Toils can be arduous.Logical formLearned from6 sentences. A bit can be arduous.Logical formLearned from6 sentences. Tasks of (prevention and treatment) can be arduous.Logical formLearned from6 sentences. Sessions can be arduous.Logical formLearned from6 sentences. Explorations can be arduous.Logical formLearned from5 sentences. Endeavors can be arduous.Logical formLearned from5 sentences. Projects can be arduous.Logical formLearned from5 sentences. A post can be arduous.Logical formLearned from5 sentences. An apprenticeship can be arduous.Logical formLearned from5 sentences. A (selection process) can be arduous.Logical formLearned from5 sentences. A section can be arduous.Logical formLearned from5 sentences. Attempts can be arduous.Logical formLearned from5 sentences. A march can be arduous.Logical formLearned from5 sentences. A situation can be arduous.Logical formLearned from5 sentences. (Text processing tasks) can be arduous.Logical formLearned from5 sentences.