(Design requirements) can be challenging.Logical formLearned from2 sentences. Exhortations can be challenging.Logical formLearned from2 sentences. A dose can be challenging.Logical formLearned from2 sentences. A dogma can be challenging.Logical formLearned from2 sentences. A lesson can be challenging.Logical formLearned from2 sentences. Transport can be challenging.Logical formLearned from2 sentences. A (group project) can be challenging.Logical formLearned from2 sentences. A segment can be challenging.Logical formLearned from2 sentences. An organization can be challenging.Logical formLearned from2 sentences. A remit can be challenging.Logical formLearned from2 sentences. (Software problems) can be challenging.Logical formLearned from2 sentences. (Application domains) can be challenging.Logical formLearned from2 sentences. (Fishery science issues) can be challenging.Logical formLearned from2 sentences. (Game birds) can be challenging.Logical formLearned from2 sentences. (Course requirements) can be challenging.Logical formLearned from2 sentences.