Investors can be buyers of bonds.Logical formLearned from21 sentences. A bond can be important.Logical formLearned from21 sentences. (General obligation bonds) may pertain-to a us-state.Logical formLearned from21 sentences. Trading can be in a (bond market).Logical formLearned from21 sentences. (Bond proceeds) can be tax-exempt.Logical formLearned from21 sentences. A central bank may purchase bonds.Logical formLearned from21 sentences. Bonds can be constituted-of-or-filled-with family.Logical formLearned from21 sentences. A male can be free on a bond.Logical formLearned from21 sentences. Bonds may tell reporters.Logical formLearned from21 sentences. Ratings can be on bonds.Logical formLearned from21 sentences. A bond can be with voters.Logical formLearned from21 sentences. Bonds can be redeemable.Logical formLearned from21 sentences. Bonds can be safe.Logical formLearned from21 sentences. A downgrade may pertain-to bonds.Logical formLearned from21 sentences. (Bond issues) may pertain-to a country.Logical formLearned from21 sentences.