ci is "change inner ..." If we use | to mark our cursor, and you have your cursor inside quote: '"he|re"' ci" would replace everything inside giving you '"|"'

ci is "change inner ..." If we use | to mark our cursor, and you have your cursor inside quote: '"he|re"' ci" would replace everything inside giving you '"|"' and putting you in insert mode. cab would aso remove the quotation marks and give you '|' With ce or cw you'd get '"he"' and cE or cW would give you '"he'