bbb bbg bbi bbn bbo bbr bbs bbx bgb bgg bgi bgn bgo bgr bgs bgx bi- bib big bii bin bio bir bis bix bnb bng bni bnn bno bnr bns bnx bob bog boi bon boo bor bos box brb brg bri brn bro brr brs brx bsb bsg bsi bsn bso bsr bss bsx bxb bxi bxn bxo bxx gbg gbi gbn gbo gbr gbs gbx ggb ggg ggi ggn ggo ggr ggs gib gig gii gin gio gir gis gnb gni gnn gno gnr gns gob gog goi gon goo gor gos gox grb grg gri grn gro grr grs grx gsb gsg gsi gsn gso gsr gss gsx gxs ibb ibg ibi ibn ibo ibr ibs ibx igb igg igi ign igo igr igs iib iii iin iio iir iis iix in- inb ing ini inn ino inr ins inx io- iob iog ioi ion ioo ior ios ir- irb irg iri irn iro irr irs irx is- isb isg isi isn iso isr iss ixi ixn n-i nbb nbg nbi nbn nbo nbr nbs nbx ngb ngg ngi ngn ngo ngs nib nig nii nin nio nir nis nix nnb nng nni nnn nno nns no- nob nog noi non noo nor nos nox nrb nrg nri nrn nro nrr nrs nrx nsb nsg nsi nsn nso nsr nss nsx o-i ob- obb obg obi obn obo obr obs obx ogg ogi ogn ogo ogs ogx oib oii oin oio oir ois on- onb ong oni onn ono onr ons onx oo- oob oog ooi oon ooo oor oos oox or- orb org ori orn oro orr ors orx os- osb osg osi osn oso osr oss osx ox- oxb oxi oxn oxo oxx rbb rbg rbi rbn rbo rbr rbs rbx rgb rgg rgi rgn rgo rgr rgs rgx rib rig rii rin rio rir ris rix rnb rng rni rnn rno rnr rns rob rog roi ron roo ror ros rox rrb rrg rri rrn rrr rrs rsb rsg rsi rsn rso rsr rss rsx rxr rxs sbb sbg sbi sbn sbo sbr sbs sbx sgb sgg sgi sgn sgo sgr sgs sgx sib sig sii sin sio sir sis six snb sng sni snn sno snr sns sob sog soi son soo sor sos sox sr- srb srg sri srn sro srr srs srx ss- ssb ssg ssi ssn sso ssr sss ssx sxi sxn sxs xbr xbx xgi xii xin xio xis xix xno xns xog xoi xon xoo xor xos xox xrx xsb xsi xss xxi xxo xxx