b-u bbb bbi bbn bbo bbs bbu bbx bi- bib bii bin bio bis biu bix bnb bni bnn bno bns bnu bnx bob boi bon boo bos bou box bsb bsi bsn bso bss bsu bsx bub bui bun buo bus buu bux bxb bxi bxn bxo bxx ibb ibi ibn ibo ibs ibu ibx iib iii iin iio iis iiu iix in- inb ini inn ino ins inu inx io- iob ioi ion ioo ios iou is- isb isi isn iso iss isu iu- iub iui ius ixi ixn n-i nbb nbi nbn nbo nbs nbu nbx nib nii nin nio nis niu nix nnb nni nnn nno nns nnu no- nob noi non noo nos nou nox nsb nsi nsn nso nss nsu nsx nub nui nun nuo nus nuu nux o-i ob- obb obi obn obo obs obu obx oib oii oin oio ois oiu on- onb oni onn ono ons onu onx oo- oob ooi oon ooo oos oox os- osb osi osn oso oss osu osx ou- oui oun ouo ous ox- oxb oxi oxn oxo oxx sbb sbi sbn sbo sbs sbu sbx sib sii sin sio sis siu six snb sni snn sno sns snu sob soi son soo sos sou sox ss- ssb ssi ssn sso sss ssu ssx sub sui sun suo sus suu sux sxi sxn sxs sxu ubb ubi ubn ubo ubs ubu ubx uib uii uin uio uis uiu un- unb uni unn uno uns unu unx uob uon uoo uos uox usb usi usn uso uss usu usx uun uus uuu uxb uxo uxu xbx xii xin xio xis xiu xix xno xns xnu xoi xon xoo xos xox xsb xsi xss xui xun xus xxi xxo xxx