bbbb bblb bboy bbpr bbyo bffl bfpo bfpp blob bloo blop bloy bly- bobb bobo boby boff boll bolo boly boob boof bool boop boor bopp bor- borf boro borr bory boyf boyl boyo bpfl brlp brob brol broo bror brrr bry- bryo byob byol byop fbop ffff ffrr flob floo flop flor floy fofo foll folo folr foly foof fool fopp for- forb forl foro forr foyl fprf frob frol frop fyry lblr llll lloo llyr lob- lobb lobo loby loff loll lolo loly loob loof lool loop loor lopp loro lory lpfp lppl lprp lrrr lrry lyff lyfy lyly lyo- lyro lyyf obbo obby obol obor oboy obro off- offo offr offy ofor olbo olby ollo olly olof olor olry olyf ooby ooff oofy oolo oooo oory opo- opor oppo oppy opry orbb orbo orby orff orlo orly oro- orof oror oroy orro orry oyly pbrf pfff pffr plbr plff plob ploo plop ploy plpp pobo poff poll polo poly poof pool poop poor pop- popo popp popy porb poro porr pory poyo poyr pplo pppo pppp pprf prlr pro- prob prof prol proo prop pyl- pyll pyo- pypy pyr- pyrl pyro pyry rbbb rbbr rffl rob- robb robo roby roff rofl rofo rolf roll rolo rolp roly roob roof rool roop roor ropo ropy roro rory royl rpob rpof rrrr rybp ryff ryob ryyf ybor ybry yobo yoff yoll yolo yolp yoly yoof yool yoop yopo yopy yoro yory yoyo ypfb ypfl yrly yrof yyff yyyy