gistfile1.txt

function create(trigram_dict ){ 
	new_string_arr = ["Yo","mama"];
	prevword=trigram_dict [ new_string_arr[new_string_arr.length-2];
	pprevword=new_string_arr[new_string_arr.length-1] ;
	while( typeof( trigram_dict [prevword+' '+pprevword] ) != "undefined" ){
		candidate_words = trigram_dict [ prevword+' '+pprevword ] ; 
		
		//select word randomly out of all candidates
		item = candidate_words[Math.floor( 
 				Math.random() * candidate_words.length)];
		new_string_arr.push(item);
		prevword=trigram_dict [ new_string_arr[new_string_arr.length-2];
		pprevword=new_string_arr[new_string_arr.length-1] ;
	}
	new_str = new_string_arr.join(" ");
	//A brand new sentence
	return new_str ; 
}