d-dot d-rod ddddd do-do dodoo dodro dofor doodo dopdf dordt dorff dorot dotoo dotto droff drood droof droop drop- dropo dropt drott fodor foord ford- fordo fordp forro forto fprot frodo frood froop froot ftord ftrtt odttf offof offto ofoto ofpop ooooo oopod opodo opto- optot optto ordro orfor orodo ortoo ototo otpor pforp po-po podo- podor poopo poort popop poppo poro- porro porto potof potoo potop potor potro potto prodd proff proft proof proor proot prop- propp propr propt prot- proto prtor ptprd ptprf ptpro ptprr ptprt ro-ro rodor rofor rooft roto- rotor rotot rotto rprop rptor t-pop t-top to-do todor toffo tofop tofor toord topo- topof topor topot toppo topto torpo torro torto toto- totoo totop tprot troff troft trood troop trop- tropo trott ttttt