nl_tokens: Set up structure of the datastore .
pl_tokens: function setUpDataStore ( dataStore , labels , dataLength ) { var i ; for ( i = 0 ; i < dataLength ; i ++ ) { dataStore [ i ] = { <mask> : { } , labels : { } } ; labels . forEach ( function ( label ) { dataStore [ i ] . labels [ label ] = 0 ; } ) ; } }