h-ii hhhh hhhs hihi hiho hiis hiri hiro hirs hish hiss hoho hoir hois hoor hoos hori horo horr hors hosh hoss hrhs hros hrso hshs ihis ihss iiii iiio iiis iioi iioo iios iirs iisi iisr ioii ioio iooi iooo ioos iori iors ioso irhs iri- irio iris iroh irri irrs ishi ishr ishs isis iso- isor isos isri issh issi isso issr isss ohhi ohho ohhs ohio ohis ohoh ohos ohso ohss oiii oios ooho oohs oooh oooo ooos oosi orhs ori- orio oris oro- oror oros orri orro orrs orsi orso oshi osho oshs osii osis osoi osoo osor osos osro ossi osso rhhs rhio rhoh rhos riho rihs riis rios riri rirs rish risi riso riss rohr rohs roio roir rois rooi roor roos rori roro rosh rosi roso ross rrhs rrrr rshs rsis rsos s-ii s-os shhh shhs shih shii shio shir shis shoo shor shos shri shrs sihi sihr sihs sior sios siri siro sirr sirs sish sisi siss sohh soho sohs soir sois soor soos sorh sori soro sorr sors sosh sosi soso soss srhs sris sros sshs ssis ssri ssrs sssh sssi ssss