bbb bbi bbm bbn bbo bbs bbt bi- bib bii bim bin bio bis bit bmb bmi bmm bmn bmo bms bmt bnb bni bnn bno bns bnt bob boi bom bon boo bos bot bsb bsi bsm bsn bso bss bst btb bti btm btn bto bts btt ibb ibi ibm ibn ibo ibs ibt iib iii iim iin iio iis iit im- imb imi imm imn imo ims imt in- inb ini inm inn ino ins int io- iob ioi iom ion ioo ios iot is- isb isi ism isn iso iss ist itb iti itm itn ito its itt m-o mbb mbi mbm mbo mbs mbt mi- mib mii mim min mio mis mit mmb mmi mmm mmn mmo mms mmt mnb mni mnm mnn mno mns mnt mob moi mom mon moo mos mot msb msi msm msn mso mss mst mtb mti mtm mtn mto mts mtt n-i nbb nbi nbm nbn nbo nbs nbt nib nii nim nin nio nis nit nmb nmi nmm nmn nmo nms nmt nnb nni nnm nnn nno nns nnt no- nob noi nom non noo nos not nsb nsi nsm nsn nso nss nst ntb nti ntm ntn nto nts ntt o-i ob- obb obi obm obn obo obs obt oib oii oim oin oio ois oit om- omb omi omm omn omo oms omt on- onb oni onn ono ons ont oo- oob ooi oom oon ooo oos oot os- osb osi osm osn oso oss ost ot- otb oti otm otn oto ots ott sbb sbi sbm sbn sbo sbs sbt sib sii sim sin sio sis sit smb smi smm smn smo sms smt snb sni snm snn sno sns snt sob soi som son soo sos sot ss- ssb ssi ssm ssn sso sss sst stb sti stm stn sto sts stt tbb tbi tbm tbn tbo tbs tbt tib tii tim tin tio tis tit tmb tmi tmm tmn tmo tms tmt tnb tni tnm tnn tno tns tnt to- tob toi tom ton too tos tot tsb tsi tsm tsn tso tss tst ttb tti ttm ttn tto tts ttt