b-u bbb bbn bbo bbr bbs bbu bbw bnb bnn bno bnr bns bnu bnw bob bon boo bor bos bou bow brb brn bro brr brs bru brw bsb bsn bso bsr bss bsu bsw bub bun buo bur bus buu buw bwb bwo bwr bws bwu nbb nbn nbo nbr nbs nbu nbw nnb nnn nno nns nnu nnw no- nob non noo nor nos nou now nrb nrn nro nrr nrs nru nrw nsb nsn nso nsr nss nsu nsw nub nun nuo nur nus nuu nwb nwn nwo nwr nws nwu ob- obb obn obo obr obs obu obw on- onb onn ono onr ons onu oo- oob oon ooo oor oos oow or- orb orn oro orr ors oru os- osb osn oso osr oss osu osw ou- oun ouo our ous owb own owo ows owu oww rbb rbn rbo rbr rbs rbu rbw rnb rnn rno rnr rns rnu rnw rob ron roo ror ros rou row rrb rrn rrr rrs rru rsb rsn rso rsr rss rsu rsw rub run ruo rur rus ruu rwb rwr rws rwu sbb sbn sbo sbr sbs sbu sbw snb snn sno snr sns snu snw sob son soo sor sos sou sow sr- srb srn sro srr srs srw ss- ssb ssn sso ssr sss ssu ssw sub sun suo sur sus suu suw swb swn swo swr sws swu ubb ubn ubo ubr ubs ubu ubw un- unb unn uno unr uns unu unw uob uon uoo uor uos uow ur- urb urn uro urr urs uru urw usb usn uso usr uss usu usw uun uur uus uuu uwb uwn uwr uws uww wbb wbn wbo wbr wbs wbw wn- wnn wno wns wnu wnw wob won woo wor wos wou wow wr- wrn wro wrr wrs wru wrw wsb wsn wso wsr wss wsu wsw wub wun wuo wur wus wwn wwo wwu www