A test can be viable.Logical formLearned from17 sentences. A program may remain viable.Logical formLearned from17 sentences. A (future state) can be viable.Logical formLearned from17 sentences. An address can be viable.Logical formLearned from17 sentences. An existence can be viable.Logical formLearned from17 sentences. A (transportation option) can be viable.Logical formLearned from17 sentences. Data can be viable.Logical formLearned from17 sentences. A community can be viable.Logical formLearned from17 sentences. A line can be viable.Logical formLearned from17 sentences. A dna can be viable.Logical formLearned from17 sentences. A vein can be viable.Logical formLearned from17 sentences. Small businesses can be viable.Logical formLearned from17 sentences. An economic activity can be viable.Logical formLearned from17 sentences. (Anthrax spores) can be viable.Logical formLearned from17 sentences. A (business alternative) can be viable.Logical formLearned from17 sentences.