hhh hho hhr hhs hhu hoh hoo hor hos hou hr- hrh hro hrr hrs hru hsh hsr hss hsu huh huo hur hus huu ohh oho ohr ohs ohu oo- ooh ooo oor oos or- orh oro orr ors oru os- osh oso osr oss osu ou- ouh ouo our ous rh- rhh rho rhr rhs rhu roh roo ror ros rou rrh rrr rrs rru rsh rso rsr rss rsu ruh ruo rur rus ruu sh- shh sho shr shs shu soh soo sor sos sou sr- srh sro srr srs ss- ssh sso ssr sss ssu suh suo sur sus suu uhh uho uhr uhs uhu uoo uor uos ur- uro urr urs uru ush uso usr uss usu uur uus uuu