Gains may boost an index.Logical formLearned from19 sentences. An index can be a basis.Logical formLearned from19 sentences. A (composite index) may sink some percent.Logical formLearned from19 sentences. A (composite index) may slip some points.Logical formLearned from19 sentences. An (index finger) can be on a hand.Logical formLearned from19 sentences. A (stock index) may advance.Logical formLearned from19 sentences. An index may signal a contraction.Logical formLearned from19 sentences. Persons can be with a (body mass index).Logical formLearned from19 sentences. A (composite index) may soar.Logical formLearned from19 sentences. An index may rise for a day.Logical formLearned from19 sentences. An index may rise above some points.Logical formLearned from19 sentences. An index may end a (morning session).Logical formLearned from19 sentences. An index may shoot_up by some points.Logical formLearned from19 sentences. An index may be dragged.Logical formLearned from19 sentences. A (price index) may close.Logical formLearned from19 sentences.