hhhh hhhs hoho hoop hoor hoos hopo hopp hops hopy horo horr hors hory hosh hosp hoss hoys hphs hpps hpss hrhs hros hrpp hrps hrso hshs hsps hssp hyo- hyp- hyph hypo hyps hypy ohho ohhs ohoh ohos ohso ohss ohyo ooho oohs oooh oooo ooos oops oory ophs opo- opor opos oppo opps oppy opry opsy orhs oro- oror oros oroy orph orps orro orrs orry orso orsy orys osho oshp oshs osoo osor osos osro osso ossy osyp oyss phhs phoh phoo phos phrr phrs phys pohs pooh poop poor poos pop- popo popp pops popy poro porr pors pory posh poso poss posy poyo poyr poys pphs ppos pppo pppp ppps ppsh ppss prhs pro- proo prop pros prps prrs prso prss prys pshs psos psph pspp pspr psps psrp psso psy- psys pyo- pyos pypy pyr- pyro pyry pyss rhhs rhoh rhos rhys rohr rohs rohy roop roor roos ropo rops ropy roro rory rosh roso rosp ross rosy roys rpho rphs rpos rpps rrhs rrrr rrsp rshs rsos rspo rsps ryoh rysh rysy s-os shhh shhs shoo shop shor shos shps shrp shrs shyp sohh soho sohp sohs soop soor soos sooy soph sopo sopp sops sopy sorh soro sorr sors sory sosh soso soss soyo soys sphr sphs spoo spop spor spos spoy spps spro sprs spry spso spsp spss spy- spyh spyr spys srhs sros srps srsp sshs ssop sspo ssps ssrs sssh ssss syph sypo syro syrs syry syso syss yoho yoop yopo yopy yoro yory yosh yoso yoyo yrho ysop yssh yyyy