b-u bbb bbh bbi bbr bbs bbu bhb bhh bhi bhr bhs bhu bi- bib bih bii bir bis biu brb brh bri brr brs bru bsb bsh bsi bsr bss bsu bub buh bui bur bus buu h-i hbb hbh hbi hbr hbs hbu hhb hhh hhi hhr hhs hhu hib hih hii hir his hiu hr- hrb hrh hri hrr hrs hru hsb hsh hsi hsr hss hsu hub huh hui hur hus huu ibb ibh ibi ibr ibs ibu ihb ihh ihi ihr ihs ihu iib iih iii iir iis iiu ir- irb iri irr irs iru is- isb ish isi isr iss isu iu- iub iui iur ius rbb rbh rbi rbr rbs rbu rh- rhb rhh rhi rhr rhs rhu rib rih rii rir ris rrb rrh rri rrr rrs rru rsb rsh rsi rsr rss rsu rub ruh rui rur rus ruu sbb sbh sbi sbr sbs sbu sh- shb shh shi shr shs shu sib sih sii sir sis siu sr- srb srh sri srr srs ss- ssb ssh ssi ssr sss ssu sub suh sui sur sus suu ubb ubh ubi ubr ubs ubu uhb uhh uhi uhr uhs uhu uib uii uir uis uiu ur- urb uri urr urs uru usb ush usi usr uss usu uur uus uuu

bbbb bbbs bbhs bhhs bhir bhur bhuu bibb bibi bibs bihi bihs bihu biis birb biri birr birs biru bis- bish biss bisu brhs brih bris brrr brrs brsb brsr bruh brus bshs bubb bubi bubs bubu buhi buhr buhs buir buis buiu bur- burb burh buri burr burs buru bush busi buss busu buus h-ii hbbs hbhs hbrs hbss hhhh hhhs hhus hibi hibu hihi hiis hiiu hiri hirs hiru hisb hish hiss hrhs hrib hshs hsur hubb hubi hubs huhi huhs huhu huib huir huis huri hurr hurs huru hush husi huss huub huus ibis ibri ibss ibus ihis ihss ihub iiii iiis iirs iisi iisr iisu irhs iri- iris irri irrs irus ishi ishr ishs isis isri issh issi issr isss issu isuh isus iuiu iuss rbbb rbbr rbbs rbhs rbis rbss rhhs rhib rhus rib- ribs ribu rihs riis riri rirs rish risi riss risu rius rrhs rrrr rsbi rshs rsis rubb rubi rubs rubu ruhh ruhi ruhr ruhs ruis ruri rurs ruru rush rusi russ rusu s-ib s-ii sbbs sbhs sbsi sbus shbs shhh shhs shib shih shii shir shis shiu shri shrs shub shui shur shus shuu sibi sibs sibu sihi sihr sihs sihu siri sirr sirs siru sish sisi siss sisu siui sius srhs srib sris srub ssbr sshs ssis ssri ssrs sssb sssh sssi ssss sub- subb subh subi subs suhb suhi suhr suir suis sur- suri surr surs suru sus- susi suss susu suus ubbi ubii ubir ubis uhrs uhss uhuh uirr urbi urbs urib uris uriu urrh urri ursi urss ursu urur urus usbr usbs ushi ushr ushs ushu usis ussb ussr usss ussu usui usus uuri uusi uuuu

bbuss bibbs bibis bibri bibus birrs birur bishi bishu brisb brish brisi briss brrrr bruhs bruis bruiu bruri brush bruss burbs burri burrs burru burus bushi busir bussu busur busuu h-iib hhhhh hi-hi hibbs hibhi hibri hibur hiisi hirsh hirur hishu hisis hisiu hissi hisss hrhis hubbs hubur huhuh huhus huish hurri hushi husri huuru ibbur ibish iiiii iiris iisir irbis iris- irish iriss irisu irshi irssi is-is ishii ishis isisi isrib isshi issru issus issuu isuus rhuis ribbi riisu rishi rissh risus rubbi rubis rubus ruhrs ruhub ruiru rushh russh russi s-bus s-iii shhhh shibi shihr shiri shirr shiru shish shiur shris shrub shu-i shubb shubi shuis shuri shuru shush sibir sibiu sibsu sibur sihri sihrs sihui sirih siris siriu sirsi sirur sisis sissi sissu siuri siuru siusi sssrb ssssh sssss subbu subis subss suhur suibu surir suris suruh surui surur surus sushi susus ubirr ubisi ubris uh-uh uhhuh uhuhs uhuru uibis urbis urris urshu ursus urubu ururi urusi ushis ushus ususi uusis uuuuu

bbbbbb bibiri bibiru biribi birrus bissh- bribir bribri briish brubru bububu buhusi burbur burris bururi bushsr bussh- busshi hibhib hubbub hubris hubrus hububb huh-uh huishu hurius hushih ishibu isurus ribbis ribhus ribisi rishis rubish ruhubi russus sbirri shibui shihhi shirrs shirui shirur shishi shisui shiurs shrubs shshsh shuibu shursh shusui siiiii siriri sirius sirris sirsir sishui sisisi subisu suburb suburi sushis susurr ubussu uh-huh uhhuhs urushi usbhub usiris ussuri

bbbbbbb bissibi bissiri brihiri brussh- burruss bushihr busiris hub-bub hubbubs hur-bur hurhuri hurrish ihururu rhibhus rishiri risshu rubrish rushurs shibiri shirish shirshi shishir shuishu sirrush sssssss suburbs suiriri surhuri uriburu

bbbbbbbb buruburu hurr-bur hushhush i-ii-iii rushrush shibushi siburius subshrub sussurus susurrus uh-uh-uh ushishir

hurr-burr hush-hush issisisis rush-bush rusibisir shrubbish subshrubs

shush-shush

sh-h-h-h-h-h

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