Performers can be among (index stocks).Logical formLearned from19 sentences. An index may be lost.Logical formLearned from19 sentences. A (transportation index) may rise some percent.Logical formLearned from19 sentences. Changes can be in (stock indexes).Logical formLearned from19 sentences. Indexes may include shares of companies.Logical formLearned from19 sentences. An (employment cost index) may pertain-to a government.Logical formLearned from19 sentences. An index may pertain-to a (research institute).Logical formLearned from19 sentences. An index may trade at some times.Logical formLearned from19 sentences. An index may start in a month.Logical formLearned from19 sentences. An average may pertain-to an index.Logical formLearned from19 sentences. A (stock market index) may gain some percent.Logical formLearned from19 sentences. A (chain-weight index) may track changes.Logical formLearned from19 sentences. A (chain-weight index) may increase at a rate.Logical formLearned from19 sentences. An index of shares can be unchanged.Logical formLearned from19 sentences. An index can be constituted-of-or-filled-with some bonds.Logical formLearned from19 sentences.