hhhh hhhs hoho hoop hoor hoos hopo hopp hops horo horr hors hosh hosp hoss hphs hpps hpss hrhs hros hrpp hrps hrso hshs hsps hssp ohho ohhs ohoh ohos ohso ohss ooho oohs oooh oooo ooos oops ophs opo- opor opos oppo opps orhs oro- oror oros orph orps orro orrs orso osho oshp oshs osoo osor osos osro osso phhs phoh phoo phos phrr phrs pohs pooh poop poor poos pop- popo popp pops poro porr pors posh poso poss pphs ppos pppo pppp ppps ppsh ppss prhs pro- proo prop pros prps prrs prso prss pshs psos psph pspp pspr psps psrp psso rhhs rhoh rhos rohr rohs roop roor roos ropo rops roro rosh roso rosp ross rpho rphs rpos rpps rrhs rrrr rrsp rshs rsos rspo rsps s-os shhh shhs shoo shop shor shos shps shrp shrs sohh soho sohp sohs soop soor soos soph sopo sopp sops sorh soro sorr sors sosh soso soss sphr sphs spoo spop spor spos spps spro sprs spso spsp spss srhs sros srps srsp sshs ssop sspo ssps ssrs sssh ssss