# Jet

Jet, the Java Extraction Toolkit, provides a set of tools for natural language analysis and specifically to support information extraction. The tools in the toolkit can be used in three ways:

- through tool control scripts, which support the simple, unconditional application of a series of tools to selected portions of a message
- in some cases, as separate, stand-alone tools -- 'Jet Utilities'
- through the Java API, which allows the combination of the tools with maximum flexibility

Basic Concepts of Jet

Jet Tools: Annotators and Linguistic Resources

- Tokenizer
- Sentence Splitter
- Lexicon Lookup
- Part-of-speech tagger
- Name tagger
- Noun group chunker
- Parser
- Statistical Parser
- Pattern Matcher
- Reference Resolver

Installing and Running Jet

- Using the Jet API

Controlling Your Jet

- Jet Console
- Jet Scripts

Jet Utilities

- BIOWriter
- CorefEval
- CorefView
- CollectionView
- AnnotateCollection

Tag Sets

- Jet Part-of-speech Tags
- Penn Part-of-speech Tags