-ing bbbb bbbs bbin bblb bbls bbng bbrg bggs bgun bibb bibi bibl bibs bigb bigg bign bigs bigu biin biis bili bill bils bilu bin- bing bini binn bins binu birb birg biri birl birn birr birs biru bis- bisl biss bisu blin blir blis blls blni blrg blss blub blur blus bnib bnin bnrr bnss brig bril brin bris brls brns brrr brrs brsb brsr brug brun brus bsgs bsin bsns bubb bubi bubs bubu bugg bugi bugs buin buir buis buiu bulb bulg buli bull buls bulu bunb bung buni bunn buns bunu bur- burb burg buri burl burn burr burs buru busi buss busu buus gbbs gggg ggrn ggss gibb gibs gigg gigi gign gigs giis gilg gili gill gils ging gini ginn gins ginu girg giri girl girn girr girs giru giss giur gius gli- glib glin glis glrb glub glug glui glun glur gnib gnin gnrr gnus grbr grib grig gril grin gris grni grrl grrr grrs grss grub grug grui grun grur grus gsis gsli gsur gubb gubi gubs gubu gugb gugg gugi gugu guib guil guin guis gulb guli gull guls gulu gung gunn guns gurb gurg guri gurl gurn gurr gurs guru gusb guss guus ibis ibns ibri ibsn ibss ibus iggs igil igis igli iglu igni igns ignu igri igus iiii iiis iirs iisi iisr iisu ilin ilir ilis ill- illi ills ilni ilus ings inig inis inni innr inns innu inri inrs inss insu inui inul inun inus irgs iri- irig iril irin iris irlb irri irrs irsg irul irun irus isbl isbn isil isin isis isls isrg isri issi issr isss issu isus iugs iuiu iuss lblr lbrs lbug lgbu lgin libr libs libu ligg ligi lign liig liii liin liir liis lilb lilg lili lill lils lilu ling linn lins lirg liri lirl lirn lirr lirs liru lisi liss lisu liun lius llbs llll lngs lrgb lrrr ls-r lsbu lssr lubs lugg lugi lugs lugu luin luis luli lull lulu lung luni lunn luns lurg luri lurs lusi luss n-ii ngns ngri ngsn ngur nguu nibi nibs nigg nigs niir niiu nili nill nils nilu ning nini ninl nins nirs niru nisi nisl niss nisu niur nlgn nlls nlrb nngn nnls nnnn nnsl nnss nrlb nrrl nsin nsis nslr nsls nsnr nsrl nssb nssr nsss nsub nubi nubl nubs nugs nuin nuli null nung nunn nuns nuri nurl nurn nurr nurs nuru nusi nusl nuss nusu rbbb rbbr rbbs rbis rbsl rbss rgbi rib- ribs ribu rigg rigi rigs rigu riin riis rill rilu ring rinn riri rirs risi riss risu rius rlin rlls rlug rnbr rngs rnin rnli rrrr rrun rsbi rsgb rsis rsnn rsnr rssl rubb rubi rubs rubu rugg rugi rugs ruin ruis rull rung runi runn runs ruri rurs ruru rusi russ rusu ruun s-ib s-ii sbbs sbig sbsi sbus sggg sggs sglr sgls sgnl sgss sibi sibs sibu sigg sigi sign sigs sil- sili sill sils silu sing sini sinn sins sinu siri sirr sirs siru sisi siss sisu siui sius sl-i slib slig slir slln slrn slrs slsu slub slug slur snib snig snir snns snrs snub snug snur snus srgb srib sris srni srnn srub ssbn ssbr ssgs ssin ssis ssns ssrg ssri ssrl ssrs sssb sssi ssss sub- subb subg subi subl subs sug- sugg sugi suig suin suir suis sul- suli sull sulu sun- sunb sung suni sunn suns sunu sur- surg suri surn surr surs suru sus- susi suss susu suus ubbi ubii ubir ubis ubli ubls uggs ugis ugli ugni ugri ugur uguu uirr ulli ullr ulul ulus ungu uni- unii unin unir unis unni unns unrs uns- unsg unus urbi urbs urgi urgu urib urin uris uriu urls urni urns urri ursi urss ursu urun urur urus usbl usbr usbs usin usis uslu usnr usnu ussb ussr usss ussu usui usul usun usus uulu uuni uuri uusi uuuu