-hou bbbb bblb bboy bbpr bbyo bhor bhoy bhpl bhur bhuu blob blom bloo blop blou bloy blub blum blup blur bly- blym bmop bobb bobo bobu boby bohl bohm boho bohr bohu bohy boll bolm bolo bolu boly bomb bomp bomu bomy boob booh bool boom boop boor bopp bor- borh borm boro borr boru bory bouh boul boum boup bour bouy boyl boyo bpml brlp brob broh brol brom broo bror brou brrm brrr bruh brum brup bry- bryo bubb bubo bubu buhl buho buhr buhy bulb bull bulu bum- bumb bump buol buoy bur- burb burh burl burm buro burp burr buru bury buyl buyo buyu byob byol byop byul hhhh hlly hlul hmhb hmmm hmph hobo hoby hohl hohm hoho hol- holb holh holl holm holo holp holu holy hom- homo homp homr homu homy hool hoom hoop hoor hopo hopp hopy horl horo horr hory houp hour hoym hrbl hrob hrpp hryb hrym hubb hubl hubo huby huhu hull hulu huly humh humm humo hump huor hupp hurl huro hurr huru hury huub huyr hybo hyl- hyll hylo hylp hyly hymy hyo- hyp- hyph hypo hypy lblr lhhh lhor llll lloo llyr lmbo lmmr lob- lobb lobh lobo loby loho lohr lohu loll lolo loly lomb lomm lomo lomp lomu lomy loob lool loom loop loor lopp lopu loro lory louh loul loum loup lour louu lppl lprp lrpu lrrr lrry luby luhu lull lulu lumb lumo lump luoh lupo lupu lury luup lyly lymb lymm lyo- lyro mbhl mbou mhmm mhmr mhor mlpy mlym mmhl mmhm mmlp mmmh mmmm mmor mmpr mmpu mmrp mmyy mobb mobo moby mohl mohm moho mohr mohu moll molo molr moly momo momu momy moob mool moop moor moph mopp mopy morb morl moro moru mory moul moup mour mouy moyl moyo moyu mpho mplm mppp mpro mprp mrbb mrbm mrml mubo muhr muhu mull mulm mulo mulu muly mumm mumo mump mumu mumy murl muro murr muru mury mybb myl- myll mylo mymp mymy myo- myob myoh mypo myro myrr myry obbo obby oblu obol obor oboy obrh obro obuh ohho ohly ohmy ohob ohoh ohum ohyo olbo olby olhm ollo olly olmo olom olor olph olry olur ombo ombu omo- omoo omor ompl omro omul omuo ooby ooho oolo oooh oooo oory opml opo- opor oppo oppy opry orbb orbo orbu orby orlo orlu orly ormo ormy oro- orom oror oroy orph orro orry orub orum orup oulu ouph our- ouro ouu- ouyr oyly oyou pblu pbmr phlm phlo phob phoh phom phoo phrr phul phum phyl plbr plmb plob ploh plom ploo plop plou ploy plpp plum plup plur plym pmbr pmmp pmmu pmpm pmpo pobo pohl poll polo polu poly pomo pomp pomu pomy pooh pool poop poor pop- popo popp popy porb poro porr pory poul poum poup pour pouy poyo poyr pplo ppml pppo pppp pprm ppru ppur prhl prlr pro- prob prol prom proo prop prou prrm prum pruu prym publ pubu puhl pull pulo pulp pulu puly pump pumy puoy pupl pupu pupy pur- purb purl puro purp purr puru pury puy- puyo pyhu pyl- pyll pym- pyo- pypy pyr- pyrl pyro pyry rbbb rbbr rboh rhob rhoh rhum rhyl rlml rmll rmrp rob- robb robo robu roby rohl rohm rohr rohu rohy roll rolm rolo rolp roly romb romm romo romp romy roob rool room roop roor ropo ropy roro roru rory roub rouh roul roum roup rouy royl rpho rpob rrmp rrrr rrum rubb rubp rubu ruby ruhh ruhl ruhm ruhr rull rulo ruly rumb ruml rumm rumo rump rumy ruoy rupp rupy ruro rurp ruru ruyl rybp ryhb ryob ryoh u-rp ubbo ublo ubly uhoh uhry uhuh uhup ullo ullr ully ulmo ulmu ulo- ulul ulum umb- umbo ummo umol umor umph uoml uomo uor- upby uplb uplo upml upmy upor uppp uppu uppy upup urho uro- urol urom uroo urpo urrh urry urum urup urur uulu uuuu ybor ybry yhou ymur yobo yoho yoll yolo yolp yoly yomo yomp yool yoop yopo yopy yoro yory youb youl youp your yoyo yrho yrly yubu yulo yulu yump yury yuyu yyyy