<http://schema.org/description>
"BiMap BiMap (GitHub: alethes / bimap, License: MIT, npm: bimap) by James Daab is a bidirectional map implementation.  This is a data structure that allows you to query for values by keys and keys by values: bimap.push({     a: {     b: 1,..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://dailyjs.com/2014/09/10/bimap-breakpoint/>