bbbb bbbs bbeb bbws bebb bebe bebi beeb beek bees beik beis beke beki beks bes- bese besk bess bewe bibb bibe bibi bibs bieb bies biis bike bis- bise bisk biss biw- bseb bsee bses bsse ebbs ebbw ebes ebis eeee eees eeke eeks eese eesi eesk eiei eies eike eiki eiks eise eisk eiss ekeb ekek ekes ekis ekki eksi ekwe esbs esee esek eses esie esik esis eske esks esse essi esws ewes ewew i-be ibes ibew ibie ibis ibss ieie iesi iies iiie iiii iiis iisi iiwi ikee ikes ikki isbe iseb isee ises isie isis isse issi isss iweb iwie iwis iwiw kbbb kbbe kbbi kbbk kbbs kbbw kbeb kbee kbek kbes kbew kbib kbie kbik kbis kbkb kbkk kbkw kbsb kbsi kbsk kbss kbsw kbwb kbww kebb kebe kebi keek kees keib keii keik keis kekb keke keki keks kesb kesi kesk kess kesw kewb kewe kews kibb kibe kibi kibs kies kiew kiii kiik kiis kiki kikk kise kisi kisk kiss kisw kiwb kiwi kkbb kkbe kkbi kkbs kkik kkkk kkse kksi kkss kksw kkwb kkwe kkwk kkws ksbi ksbs ksbw ksee ksei ksek ksew ksib ksii ksik ksis ksiw kskb kske kskk ksks ksse kssi ksss kswb kswi ksws ksww kwbe kwbi kwbw kweb kwee kwei kwes kwie kwik kwkb kwkk kwkw kwsk kwss kwsw kwwk kwws s-ib s-ii sbbs sbse sbsi se-e se-i se-k se-s se-w sebe sebi sebs seeb seek sees seew seie seii seik seis seke seki sekk sese sesi sess sewe sews sibe sibi sibs siek sies siew siik sike siki siks sise sisi sisk siss siwe siwi skee skei skes skew skie skik skis skss skwe skws ssee sses ssis sssb sssi ssss ssws swbs swbw sweb swee swie swis swss wbbb wbbe wbbi wbbk wbbs wbbw wbeb wbei wbek wbes wbew wbib wbie wbik wbis wbiw wbkb wbke wbkk wbks wbkw wbsb wbss wbsw wbwb wbwi webb webe webs weeb weei week wees weib weie weii weik weis wekb weke weki weks wekw wesb wese wess wewe wibb wibi wibs wibw wiek wies wiii wiik wiis wikb wike wiki wikk wiks wise wisk wiss wisw wiwi wkbe wkbi wkbk wkbw wkeb wkei wkes wkew wkib wkie wkii wkik wkis wkiw wkkb wkki wkks wkkw wksb wkse wksk wkss wksw wkwi wkws wsbb wsbi wsbk wsbs wsbw wseb wsei wsek wses wsew wsib wsie wsis wskb wske wski wskk wskw wssi wsss wssw wswb wswi wsws wsww wwbb wweb wwei wwib wwii wwik wwis wwkb wwki wwks wwsb wwse wwsi wwsk wwss wwwe wwwi wwwk wwws wwww