An index can be subject.Logical formLearned from1 711 sentences. An index may pertain-to a us-state.Logical formLearned from1 518 sentences. An index can be in a world-city.Logical formLearned from1 517 sentences. An index may fall.Logical formLearned from1 509 sentences. An index may track a performance of enterprises.Logical formLearned from1 506 sentences. An index may be introduced in a month.Logical formLearned from1 487 sentences. An index may close.Logical formLearned from1 474 sentences. A (stock market) may close with an index.Logical formLearned from1 349 sentences. An index may pertain-to a reserve-board.Logical formLearned from1 338 sentences. An index may pertain-to a female.Logical formLearned from1 337 sentences. An index may end at some points.Logical formLearned from1 320 sentences. A (nikkei-225 index) may pertain-to a world-city.Logical formLearned from1 297 sentences. An index may lose some percent.Logical formLearned from1 285 sentences. An index may pertain-to a conference-board.Logical formLearned from1 203 sentences. An index may track a performance of some enterprises.Logical formLearned from1 200 sentences.