question: protected int [ ] splitSentence ( String sentence ) { String [ ] w = sentence . split ( "\\s+" ) ; int [ ] words = new int [ w . length ] ; for ( int i = 0 ; i < w . length ; i ++ ) words [ i ] = Vocabulary . id ( w [ i ] ) ; return words ; }
target:  Splits a sentence (on white space), then looks up the integer representations of each word using the supplied symbol table.