A search can be arduous.Logical formLearned from10 sentences. A job can be arduous.Logical formLearned from10 sentences. A match can be arduous.Logical formLearned from10 sentences. (Peace talks) can be arduous.Logical formLearned from10 sentences. A cleanup can be arduous.Logical formLearned from10 sentences. Studies can be arduous.Logical formLearned from9 sentences. A (behavior pattern) can be arduous.Logical formLearned from9 sentences. A (magazine article) can be arduous.Logical formLearned from9 sentences. Requirements can be arduous.Logical formLearned from9 sentences. Processes can be arduous.Logical formLearned from9 sentences. Affairs can be arduous.Logical formLearned from9 sentences. A debate can be arduous.Logical formLearned from9 sentences. Ones can be arduous.Logical formLearned from9 sentences. An environment can be arduous.Logical formLearned from9 sentences. A labor can be arduous.Logical formLearned from9 sentences.