A population may swell during a summer.Logical formLearned from2 sentences. An envelope may swell.Logical formLearned from2 sentences. Contents may swell from (water absorption).Logical formLearned from2 sentences. Numbers may swell to some recruits.Logical formLearned from2 sentences. A delta may swell to a size.Logical formLearned from2 sentences. Amounts may swell.Logical formLearned from2 sentences. A brain may swell after a blow.Logical formLearned from2 sentences. A sting may swell into a bump.Logical formLearned from2 sentences. A sense of loss may swell on a page.Logical formLearned from2 sentences. A (protest march) may swell.Logical formLearned from2 sentences. A town may swell in population.Logical formLearned from2 sentences. A (city population) may swell.Logical formLearned from2 sentences. A tank may swell.Logical formLearned from2 sentences. A population may swell into thousands.Logical formLearned from2 sentences. A population may swell with commuters.Logical formLearned from2 sentences.