Letters that make unstratified language
s, a, d, e, f, g, l, n, r, t, i, u are letters that make 'unstratified language'
Words within unstratified language
IED, LAN, language, age, IE, AN, la, ti, stratified language, UN, Ag, ANG, at, ng, ED, stratified, unstratified, ratified, GU, ie, rat, RA, LA, Ra, NGU, At, Ge, La, Ti are words within 'unstratified language'