* Accept plural numbers, e.g. "She is in her 30s." * Accept number expressions like 40th, 22nd, 31st * Hyphenate all compound numbers from twenty-one through ninety-nine. (See http://www.grammarbook.com/punctuation/hyphens.asp.) * Add spell checking; use google n-grams for highest likelihood. * A vs. an correction. * Capitalize sentence-initial word. * Lowercase words that are not sentence initial, acronyms, abbreviations, or proper nouns. * <possessive> living condition => <possessive> living conditions * 1/one <plural noun> => one <singular noun> * <age expression> female => <age expression> woman * hyphenate age expressions Change forms like this: <number> <hyphen>* year|years <hyphen>* old <noun> to this: <number>-year-old <noun> for example: a 44 years old => a 44-year-old but be sure that, e.g., 'He is 44 years old and married' is unchanged. * Enforce the rule that a list have a comma after the item preceding "and", i.e., change "a, b and c" to "a, b, and c". * children who are aged => children who are ages * Use consistent number format (digits or spelled) within a sentence. Either spell out all numbers within a category or use them with digits. Correct examples: - "Her kids are ages 10 and 4." - "Her kids are ages ten and four." Incorrect example: - "Her kids are ages 10 and four."