To learn more about Open IE, watch our YouTube video! Powered by ReVerb, our Open Information Extractor, yielding over 5 billion extractions from over a billion web pages. Open IE 4.0, the successor to ReVerb and Ollie, has been released. Download it from GitHub! Publications: Search Needs a Shake-up (Nature 2011) Open Information Extraction (IJCAI 2011) Ollie (EMNLP 2012) Reverb (EMNLP 2011) Text