An index may make gains.Logical formLearned from20 sentences. An index may be watched by a national-agency.Logical formLearned from20 sentences. A component can be constituted-of-or-filled-with some index.Logical formLearned from20 sentences. An index may move_up some percent.Logical formLearned from20 sentences. A (gold index) may gain some percent.Logical formLearned from20 sentences. An index may hit a high of some points.Logical formLearned from20 sentences. Constituents may pertain-to an index.Logical formLearned from20 sentences. An index may be computed.Logical formLearned from20 sentences. An index can be resistive.Logical formLearned from20 sentences. A book may contain an index.Logical formLearned from20 sentences. An index can be constituted-of-or-filled-with materials.Logical formLearned from20 sentences. Indexes can be to articles.Logical formLearned from20 sentences. Values may pertain-to an index.Logical formLearned from20 sentences. An index can be to a set.Logical formLearned from20 sentences. An index can be to literature.Logical formLearned from20 sentences.