var str = "Tell us about this interaction. Make sure you mention: (a) what the interaction was about (hangout, chit chat, discuss assignments, etc.) (b) what other things you and/or your friend was doing on the phone during this interaction (c) whether both of you were involved in this other activity and (d) any other information about this interaction you would like to share with us. Avoid using your friends full real name";
var pat = /([a-zA-Z])/g;
var out = str.replace(pat, "<br>$&");
document.write(out);