Lettuce can be worthless.Logical formLearned from3 sentences. (War bonds) can be worthless.Logical formLearned from3 sentences. An unit can be worthless.Logical formLearned from3 sentences. A guarantee may prove worthless.Logical formLearned from3 sentences. A number can be worthless.Logical formLearned from3 sentences. An oath can be worthless.Logical formLearned from3 sentences. Fools can be worthless.Logical formLearned from3 sentences. A former can be worthless.Logical formLearned from3 sentences. A theory can be worthless.Logical formLearned from3 sentences. A woman can be worthless.Logical formLearned from3 sentences. Credits can be worthless.Logical formLearned from3 sentences. A scrawl can be worthless.Logical formLearned from3 sentences. A stock may be rendered worthless.Logical formLearned from3 sentences. Some attempts can be worthless.Logical formLearned from3 sentences. A vehicle can be worthless.Logical formLearned from3 sentences.