https://www.facebook.com/ASIWISEORG/photos/a.618421481516325/2499277050097416/?type=3&eid=ARAcfQ37AYUDl408I3hsh95AdDn8hgARgrkA_VUDpMWvaqzPBGeBrQl3wAIlGfr4PMxtl6wYH1fpt7yF&__xts__%5B0%5D=68.ARCHDBk_qOoyYxVuYvznfDgIRn2kyVaiALzITh-KypGUXOpFyKDsjK0x9eCf-3aEm85S-kq1-2bjpOVcKnoMg-zPZFqmdxxAPwU6nnEsYhqL9Z9QHq-tYI64dd6P6vwoXMNnAV0XVO7QZoQlmQgwANRVeHkinmqYUQH2UziYzRxcpHplbL38fiY6x9Cg2yshmXFY07SAYBkYxxJObEnAXl74sy4&__tn__=EEHH-R
This is a great description of OT from ASI WISE
