Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Features the histories of more than 1,500 English words

Created and published in cooperation with the Editors of Merriam-Webster, this bargain edition of Webster's New Explorer Dictonary Of Word Origins features the histories of more than 1,500 English words. Presenting its alphabetically arranged entries in a down-to-earth, conversational style, cross-referenced for easy lookup and supplemented with a brief history of the English language, Webster's New Explorer Dictonary Of Word Origins is as amusing a resource as it is useful, for students and bibliophiles alike. Especially recommended for anyone striving to enhance their English vocabulary, since the background stories behind the words make for especially interesting mnemonics and other means to keep their definitions in mind.