dddd dod- dodd dodo dold doll dolo dolu dood dool door dord doro dorr doru doud doul dour drod drol drou druu dudd dudo dudu dull dulo dulu duo- duro duru duul duur llll llod lloo llud lold loll lolo lood lool loor lord loro loud loul lour louu lrdd lrrr ludd ludo lull lulu lurd oddd odoo odor odou odrl odur ollo olor olur oold oolo oooo oord ordo ordu orlo orlu oro- oror orro ould oulu our- ouro ouu- rodd rodo rold roll rolo rood rool roor roro roru roud roul rrrr rudd rudl rudo rull rulo rurd ruro ruru ruud udoo ullo ullr ulo- ulul uor- urdu uro- urol uroo urur uulu uuuu