NLTK (Natural Language Toolkit) - Tutorial

NLTK (Natural Language Toolkit) is a powerful library in Python that provides tools to work with human language data (text). It has modules for various tasks such as tokenization, stemming, and part-of-speech tagging, as well as many others. One of the great things about NLTK is that it comes with a lot of corpora (large datasets) that you can use to train and test your models. Some examples of these include the Brown Corpus, which is a collection of text from a variety of sources, and the Penn Treebank, which is a set of treebanks (syntax trees) from the University of Pennsylvania. Let's start by installing NLTK and downloading the necessary corpora.