var ignoredWords = "what,why,how,when,where,which,who,a,the,it,i,to,an,is,in,do,did,does,doesn't,will,use,can,up,set,on,my,so";
ignoredArray = new Array ();
ignoredArray = ignoredWords.split(",");

var letters = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,-, ";
lettersArray = letters.split(",");