getPos method
Maps a string to POS-enum.
Implementation
POS getPos(String str) {
var pos = POS.NOUN;
switch (str) {
case 'Verb':
pos = POS.VERB;
break;
case 'Adjective':
pos = POS.ADJ;
break;
case 'Adverb':
pos = POS.ADV;
break;
}
return pos;
}