Penn Treebank

The Penn Treebank is a annotated collection of written language, primarily newspaper articles, used to teach and improve computer programs that understand and analyze human language. It provides detailed labels for words and sentences, showing their grammatical roles and structure. This helps computers learn how sentences are constructed and how to interpret their meaning, facilitating developments in natural language processing tools like language translation and voice recognition. Essentially, it serves as a standardized reference resource for teaching machines the rules and patterns of English grammar.