bbbb bbbs bbhs bbpr bhhs bhir bhoi bhor bibb bibi bibo bibs bihi bihs biis bio- bioi bios bipp bips birb biri biro birr birs bis- bish biso bisp biss bobb bobi bobo bobs boho bohr bohs boi- boii bois boob booh boop boor boos bopp bops bor- borh bori boro borr bors bosh bosi boso boss bphs brhs brih brio bris brob broh broo bror bros brrr brrs brsb brsr bshs bsos bspp bspr h-ii hbbs hbhs hbio hbos hbrs hbss hhhh hhhs hhip hibi hihi hiho hiis hiob hipo hipp hips hiri hiro hirs hisb hish hiss hobo hobs hoho hoip hoir hois hoop hoor hoos hopi hopo hopp hops hori horo horr hors hosh hosp hoss hphs hpps hpss hrhs hrib hrip hrob hros hrpp hrps hrso hshs hsob hsps hssp ibis ibos ibri ibro ibss ihis ihob ihop ihss iiii iiio iiis iioi iioo iiop iios iirs iisi iisp iisr iobi ioii ioio iooi iooo ioos iops iori iors ioso iphr ipoh ipop ipos ippo ippr ipri ipsi ipso ipsp ipss irbp irhs iri- irio irip iris irob iroh irop irps irri irrs irsp ishi ishr ishs isis iso- isop isor isos ispr isps isri isrp issh issi isso issp issr isss obbo obhs obis oboi obor obos obrh obri obro obsr obss ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss oiii oios oobi ooho oohs oooh oooo ooos oops oosi ophi ophs opii opio opis opo- opor opos oppi oppo opps opsi orbb orbi orbo orbs orhs ori- orio oris oro- oror oros orph orpi orps orri orro orrs orsi orso osbp oshi osho oshp oshs osii osip osis osoi osoo osor osos osro ossb ossi osso pbhs pbrs pbsp phbs phhs phi- phip phis phob phoh phoo phos phrr phrs pibb pibi piip piob pipi pipo pipp pips piri piro pirr pirs pish pisi piso piss pobo pobs pohs poio pois pooh poop poor poos pop- popi popo popp pops porb pori poro porr pors posb posh posi poso poss pphi pphs ppib ppih ppos pppo pppp ppps ppsh ppss prbs prhs pri- prii pris pro- prob proo prop pros prps prri prrs prsi prso prss psbr pshs psip psis psoi psos psph pspi pspp pspr psps psrp psso rbbb rbbr rbbs rbhs rbis rboh rbsp rbss rhhs rhib rhio rhob rhoh rhos rib- ribo ribs riho rihs riis rios ripi ripp ripr rips riri rirs rish risi riso risp riss rob- robb robi robo robs rohr rohs roio roir rois roob rooi roop roor roos ropo rops rori roro rosh rosi roso rosp ross rpho rphs rpii rpob rpos rpps rrhs rrrr rrsp rsbi rshs rsis rsos rspb rspo rsps s-ib s-ii s-os sbbs sbhs sbor sbsi sbsp shbs shhh shhs shib shih shii shio ship shir shis shoo shop shor shos shps shri shrp shrs sibi sibo sibs sihi sihr sihs siop sior sios sipi sipo sipp sips siri siro sirp sirr sirs sish sisi siss sobo sobp sobr sobs sohh soho sohp sohs soir sois soop soor soos soph sopi sopo sopp sops sorb sorh sori soro sorr sors sosh sosi soso soss sphr sphs spib spio spip spir spis spoo spop spor spos spps spri spro sprs spso spsp spss srhs srib sris sros srps srsp ssbr sshs ssis ssop sspo ssps ssri ssrs sssb sssh sssi ssss