A vindication can be worthless.Logical formLearned from2 sentences. An answer can be worthless.Logical formLearned from2 sentences. An art can be worthless.Logical formLearned from2 sentences. A volume can be worthless.Logical formLearned from2 sentences. Some (spending pledges) can be worthless.Logical formLearned from2 sentences. (Junk bonds) can be worthless.Logical formLearned from2 sentences. (Iron pyrites) can be worthless.Logical formLearned from2 sentences. Promises of a place may prove worthless.Logical formLearned from2 sentences. Doctors can be worthless.Logical formLearned from2 sentences. (Bond holdings) can be worthless.Logical formLearned from2 sentences. (Tax credits) can be worthless.Logical formLearned from2 sentences. Assets may be rendered worthless.Logical formLearned from2 sentences. Bombs can be worthless.Logical formLearned from2 sentences. Some (hedge funds) can be worthless.Logical formLearned from2 sentences. Some (hedge funds) may be left worthless by bets.Logical formLearned from2 sentences.