A (campaign tour) can be arduous.Logical formLearned from3 sentences. (Combat conditions) can be arduous.Logical formLearned from3 sentences. A task of sars can be arduous.Logical formLearned from3 sentences. A (journey overland) can be arduous.Logical formLearned from3 sentences. A (flight schedule) can be arduous.Logical formLearned from3 sentences. A (negotiation process) can be arduous.Logical formLearned from3 sentences. A task of solving an (unemployment problem) can be arduous.Logical formLearned from3 sentences. An arduous march can be through territory.Logical formLearned from3 sentences. Seasons can be arduous.Logical formLearned from3 sentences. A finish can be arduous.Logical formLearned from3 sentences. A proposal can be arduous.Logical formLearned from3 sentences. Uns can be arduous.Logical formLearned from3 sentences. A (resource tax) can be arduous.Logical formLearned from2 sentences. A cause can be arduous.Logical formLearned from2 sentences. A fight of separatists can be arduous.Logical formLearned from2 sentences.