b-p bbb bbe bbi bbm bbn bbo bbp bbs bbt be- beb bee bei bem ben beo bep bes bet bi- bib bie bii bim bin bio bip bis bit bmb bme bmi bmm bmn bmo bmp bms bmt bnb bne bni bnn bno bnp bns bnt bob boe boi bom bon boo bop bos bot bpb bpe bpi bpm bpn bpo bpp bps bpt bsb bse bsi bsm bsn bso bsp bss bst btb bte bti btm btn bto btp bts btt ebb ebe ebi ebm ebn ebo ebp ebs ebt eeb eee eem een eeo eep ees eet eib eie eii eim ein eio eip eis eit em- emb eme emi emm emn emo emp ems emt en- enb ene eni enm enn eno enp ens ent eo- eob eoe eoi eom eon eoo eop eos eot ep- epb epe epi epm epn epo epp eps ept es- esb ese esi esm esn eso esp ess est etb ete eti etm etn eto etp ets ett ibb ibe ibi ibm ibn ibo ibp ibs ibt ie- iee iei iem ien iep ies iet iib iie iii iim iin iio iip iis iit im- imb ime imi imm imn imo imp ims imt in- inb ine ini inm inn ino inp ins int io- iob ioe ioi iom ion ioo iop ios iot ipb ipe ipi ipm ipn ipo ipp ips ipt is- isb ise isi ism isn iso isp iss ist itb ite iti itm itn ito itp its itt m-o mbb mbe mbi mbm mbo mbp mbs mbt meb mee mei mem men meo mep mes met mi- mib mie mii mim min mio mip mis mit mmb mme mmi mmm mmn mmo mmp mms mmt mnb mne mni mnm mnn mno mnp mns mnt mob moe moi mom mon moo mop mos mot mpb mpe mpi mpm mpn mpo mpp mps mpt msb mse msi msm msn mso msp mss mst mtb mte mti mtm mtn mto mtp mts mtt n-i nbb nbe nbi nbm nbn nbo nbp nbs nbt ne- neb nee nei nem nen neo nep nes net nib nie nii nim nin nio nip nis nit nmb nme nmi nmm nmn nmo nmp nms nmt nnb nne nni nnm nnn nno nnp nns nnt no- nob noe noi nom non noo nop nos not npb npe npi npm npn npo npp nps npt nsb nse nsi nsm nsn nso nsp nss nst ntb nte nti ntm ntn nto ntp nts ntt o-i ob- obb obe obi obm obn obo obp obs obt oeb oee oei oem oen oeo oep oes oet oib oie oii oim oin oio oip ois oit om- omb ome omi omm omn omo omp oms omt on- onb one oni onn ono onp ons ont oo- oob ooi oom oon ooo oop oos oot op- opb ope opi opm opn opo opp ops opt os- osb ose osi osm osn oso osp oss ost ot- otb ote oti otm otn oto otp ots ott p-p pbb pbe pbi pbm pbn pbo pbp pbs pbt peb pee pei pem pen peo pep pes pet pib pie pii pim pin pio pip pis pit pmb pme pmi pmm pmn pmo pmp pms pmt pn- pnb pne pni pnm pnn pno pnp pns pnt pob poe poi pom pon poo pop pos pot ppb ppe ppi ppm ppn ppo ppp pps ppt ps- psb pse psi psm psn pso psp pss pst pt- ptb pte pti ptm ptn pto ptp pts ptt sbb sbe sbi sbm sbn sbo sbp sbs sbt se- seb see sei sem sen seo sep ses set sib sie sii sim sin sio sip sis sit smb sme smi smm smn smo smp sms smt snb sne sni snm snn sno snp sns snt sob soe soi som son soo sop sos sot spb spe spi spm spn spo spp sps spt ss- ssb sse ssi ssm ssn sso ssp sss sst stb ste sti stm stn sto stp sts stt tbb tbe tbi tbm tbn tbo tbp tbs tbt te- teb tee tei tem ten teo tep tes tet tib tie tii tim tin tio tip tis tit tmb tme tmi tmm tmn tmo tmp tms tmt tnb tne tni tnm tnn tno tnp tns tnt to- tob toe toi tom ton too top tos tot tpb tpe tpi tpm tpn tpo tpp tps tpt tsb tse tsi tsm tsn tso tsp tss tst ttb tte tti ttm ttn tto ttp tts ttt