b-u bbb bbi bbn bbs bbu bbw bi- bib bii bin bis biu biw bnb bni bnn bns bnu bnw bsb bsi bsn bss bsu bsw bub bui bun bus buu buw bwb bwi bws bwu ibb ibi ibn ibs ibu ibw iib iii iin iis iiu iiw in- inb ini inn ins inu is- isb isi isn iss isu isw iu- iub iui ius iwb iwi iws iwu iww n-i nbb nbi nbn nbs nbu nbw nib nii nin nis niu nnb nni nnn nns nnu nnw nsb nsi nsn nss nsu nsw nub nui nun nus nuu nwb nwi nwn nws nwu sbb sbi sbn sbs sbu sbw sib sii sin sis siu siw snb sni snn sns snu snw ss- ssb ssi ssn sss ssu ssw sub sui sun sus suu suw swb swi swn sws swu ubb ubi ubn ubs ubu ubw uib uii uin uis uiu un- unb uni unn uns unu unw usb usi usn uss usu usw uun uus uuu uwb uwn uws uww wbb wbi wbn wbs wbw wib wii win wis wiu wn- wnn wns wnu wnw wsb wsi wsn wss wsu wsw wub wun wus wwi wwn wwu www