bbbb bbbs bbhs bblb bbls bhhs bhil bhir bhur bhuu bibb bibi bibl bibs bihi bihl bihs bihu biis bili bill bils bilu birb biri birl birr birs biru bis- bish bisl biss bisu blhs blir blis blls blss blub blur blus brhs brih bril bris brls brrr brrs brsb brsr bruh brus bshs bubb bubi bubs bubu buhi buhl buhr buhs buir buis buiu bulb buli bull buls bulu bur- burb burh buri burl burr burs buru bush busi buss busu buus h-ii hbbs hbhs hbrs hbss hhhh hhhs hhus hibi hibu hihi hiil hiis hiiu hili hill hils hilu hiri hirs hiru hisb hish hiss hlhs hlss hlul hrbl hrhs hrib hshs hsls hsur hubb hubi hubl hubs huhi huhs huhu huib huil huir huis huli hull huls hulu huri hurl hurr hurs huru hush husi huss huub huus ibis ibri ibss ibus ihis ihss ihub iihl iiii iiis iirs iisi iisr iisu ilir ilis ill- illi ills ilus irhs iri- iril iris irlb irri irrs irul irus isbl ishi ishr ishs isil isis isls isri issh issi issr isss issu isuh isus iuiu iuss lbhs lblr lbrs lhbs lhhh lhhs lhss libr libs libu lih- lihi liii liir liis lilb lili lill lils lilu liri lirl lirr lirs liru lish lisi liss lisu lius llbs llhs llll lrhs lrrr ls-r lsbu lshs lssr lubs luhi luhu luis luli lull lulu luri lurs lush lusi luss rbbb rbbr rbbs rbhs rbis rbsl rbss rhhs rhib rhli rhls rhus rib- ribs ribu rihs riis rill rilu riri rirs rish risi riss risu rius rlls rlsh rrhs rrrr rsbi rshs rsis rssl rubb rubi rubs rubu ruhh ruhi ruhl ruhr ruhs ruis rull ruri rurs ruru rush rusi russ rusu s-ib s-ii sbbs sbhs sbsi sbus shbs shhh shhs shib shih shii shil shir shis shiu shl- shls shri shrs shub shui shul shur shus shuu sibi sibs sibu sihi sihl sihr sihs sihu sil- sili sill sils silu siri sirr sirs siru sish sisi siss sisu siui sius sl-i slhs slib slir slrs slsu slub slur srhs srib sris srub ssbr sshl sshs ssis ssri ssrl ssrs sssb sssh sssi ssss sub- subb subh subi subl subs suhb suhi suhl suhr suir suis sul- sulh suli sull sulu sur- suri surr surs suru sus- susi suss susu suus ubbi ubii ubir ubis ubli ubls uhrs uhss uhuh uirr ulli ullr ulul ulus urbi urbs urib uris uriu urls urrh urri ursi urss ursu urur urus usbl usbr usbs ushi ushr ushs ushu usis uslu ussb ussr usss ussu usui usul usus uulu uuri uusi uuuu