A pump may improve (heart function).Logical formLearned from6 sentences. Rivals may improve relations.Logical formLearned from6 sentences. (School attendance) may improve.Logical formLearned from6 sentences. Champion may improve a record.Logical formLearned from6 sentences. A serve may improve in a set.Logical formLearned from6 sentences. A female may improve on a finish.Logical formLearned from6 sentences. Earnings may improve in a quarter.Logical formLearned from6 sentences. A male may improve chances of germanning.Logical formLearned from6 sentences. Persons may improve a record.Logical formLearned from6 sentences. Persons may improve a deal.Logical formLearned from6 sentences. (Advertising trends) may improve.Logical formLearned from6 sentences. A case can be an obstacle to improving relations.Logical formLearned from6 sentences. A turn may improve expectations.Logical formLearned from6 sentences. Security may improve in some parts of a country.Logical formLearned from6 sentences. A trip may be aimed at improving ties.Logical formLearned from6 sentences.