-up b-p b-u bbb bbi bbp bbr bbs bbu bi- bib bii bip bir bis biu bpb bpi bpp bpr bps bpu brb bri brp brr brs bru bsb bsi bsp bsr bss bsu bub bui bup bur bus buu ibb ibi ibp ibr ibs ibu iib iii iip iir iis iiu ipb ipi ipp ipr ips ipu ir- irb iri irp irr irs iru is- isb isi isp isr iss isu iu- iub iui iup iur ius p-p pbb pbi pbp pbr pbs pbu pib pii pip pir pis piu ppb ppi ppp ppr pps ppu prb pri prp prr prs pru ps- psb psi psp psr pss psu pub pui pup pur pus puu rbb rbi rbp rbr rbs rbu rib rii rip rir ris rpb rpi rpp rpr rps rpu rrb rri rrp rrr rrs rru rsb rsi rsp rsr rss rsu rub rui rup rur rus ruu sbb sbi sbp sbr sbs sbu sib sii sip sir sis siu spb spi spp spr sps spu sr- srb sri srp srr srs ss- ssb ssi ssp ssr sss ssu sub sui sup sur sus suu ubb ubi ubp ubr ubs ubu uib uii uip uir uis uiu up- upb upi upp upr ups upu ur- urb uri urp urr urs uru usb usi usp usr uss usu uur uus uuu

bbbb bbbs bbpr bibb bibi bibs biis bipp bips bipu birb biri birr birs biru bis- bisp biss bisu bpsu bris brrr brrs brsb brsr brup brus bspp bspr bsup bubb bubi bubs bubu buir buis buiu bups bur- burb buri burp burr burs buru busi buss busu buus ibis ibri ibss ibus iiii iiis iirs iisi iisp iisr iisu ippr ipri ipsi ipsp ipss ipur ipus irbp iri- irip iris irps irri irrs irsp irus isis ispr isps isri isrp issi issp issr isss issu isup isus iuiu iupp iuss pbrs pbsp pibb pibi piip pipi pipp pips piri pirr pirs piru pisi piss pisu pius ppib pppp ppps ppru ppss ppur prbs pri- prii pris prps prri prrs prsi prss prus pruu psbr psip psis pspi pspp pspr psps psrp pubs pubu puir puis puiu pupi pups pupu pur- purb puri purp purr purs puru pusi puss rbbb rbbr rbbs rbis rbsp rbss rib- ribs ribu riis ripi ripp ripr rips riri rirs risi risp riss risu rius rpii rpps rrrr rrsp rsbi rsis rspb rsps rubb rubi rubp rubs rubu ruis rupp ruri rurp rurs ruru rusi russ rusu s-ib s-ii sbbs sbsi sbsp sbus sibi sibs sibu sipi sipp sips siri sirp sirr sirs siru sisi siss sisu siui sius spib spip spir spis spps spri sprs spsp spss spui spur spus srib sris srps srsp srub ssbr ssis ssps ssri ssrs sssb sssi ssss sub- subb subi subs suir suis sup- supp supr sups sur- suri surp surr surs suru sus- susi susp suss susu suus u-rp ubbi ubii ubir ubis uipi uirr upis uppp uppu upri upsi upup urbi urbs urib uris uriu urri ursi urss ursu urup urur urus usbr usbs usip usis uspp usps ussb ussr usss ussu usui usus uuri uusi uuuu

bbuss bibbs bibis bibri bibus bipib birrs birur bpips brisb brisi briss brrrr bruis bruiu bruri bruss burbs burps burri burrs burru burus busir bussu busur busuu ibbur iiiii iiris iisir ipsi- ipsus ipubi irbis iris- iriss irisu irssi irupi is-is isisi ispup isrib issru issus issuu isuus iupps piiri piisi piisu pipis pippi pipri pirri pirui pirus pissi piuri piuru piusi priis priss prius pruss pubis pupri puris purrs purus puuri puurs ribbi ribup riisu ripup rirpu risps rissp risus rrsps rubbi rubis rubup rubus ruiru rupsi russi s-bus s-iii sibir sibiu sibsu sibur sippi sipsi siris siriu sirsi sirup sirur sisis sissi sissu siuri siuru siusi spir- spirr spiss spurr spurs srprb sssrb sssss subbu subis subss suibu supps supsi supur surir suris surpu surui surur surus susus ubirr ubisi ubris uibis uispp urbis urris ursus urubu ururi urusi uspis usurp ususi uusis uuuuu

bbbbbb bibiri bibiru biribi birpur birrus bribir bribri brubru bububu burbur burris burrup bururi isurus pipipi pipiri pipisb pippip pirrip pissis piupiu piusii pppppp ppsspp pripps pubsub pubusi puppis puriri purisi purius purpur pussi ribbis ribisi ripsup rub-up rubsup russus sbirri sibpur siiiii sipirs siriri sirius sirpur sirris sirrup sirsir sirups sisisi spiri- spiris sripur srprss subisu suburb suburi susurr ubussu uruppu usiris ussuri usurps

bbbbbbb bissibi bissiri burruss busiris piisupi pip-pip piss-up pribis pui-pui purpris sirpurr spurius ssipsis sssssss suburbs suiriri suurupi uriburu

bbbbbbbb buruburu i-ii-iii piripiri piss-ups purpuri- siburius sussurus susurrus

issisisis piri-piri rusibisir

pip-pip-pip

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