A stack can be constituted-of-or-filled-with (index cards).Logical formLearned from25 sentences. An index may fall.Logical formLearned from25 sentences. An index of leading economic indicators may drop some percent.Logical formLearned from25 sentences. A (benchmark index) may lose some points.Logical formLearned from25 sentences. An index may pertain-to an (industry group).Logical formLearned from25 sentences. A (purchasing index) may rise to some percent.Logical formLearned from25 sentences. A (stock index) may be slipped.Logical formLearned from25 sentences. A (composite index) may bear a brunt of a string of downgrades.Logical formLearned from25 sentences. An index of some municipal bonds can be unchanged.Logical formLearned from25 sentences. A rally may push an index.Logical formLearned from25 sentences. An index may close a (morning session).Logical formLearned from25 sentences. An index of coincident indicators may track a pace of economic activity.Logical formLearned from25 sentences. An index may measure confidence of players.Logical formLearned from25 sentences. An (economic sentiment index) may pertain-to a country.Logical formLearned from25 sentences. Losses can be in an index.Logical formLearned from25 sentences.