Customers can be frustrated.Logical formLearned from22 sentences. A person can be frustrated with a life.Logical formLearned from22 sentences. (Computer users) can be frustrated.Logical formLearned from22 sentences. A group can be frustrated.Logical formLearned from22 sentences. Refugees can be frustrated.Logical formLearned from22 sentences. A young man can be frustrated.Logical formLearned from22 sentences. Players can be frustrated.Logical formLearned from22 sentences. A side can be frustrated.Logical formLearned from21 sentences. A country may get frustrated.Logical formLearned from21 sentences. Teachers can be frustrated.Logical formLearned from21 sentences. An one can be frustrated.Logical formLearned from21 sentences. A doctor can be frustrated.Logical formLearned from21 sentences. Doctors can be frustrated.Logical formLearned from21 sentences. Ones can be frustrated.Logical formLearned from21 sentences. Reporters can be frustrated.Logical formLearned from21 sentences.