-er -ji b-p bbb bbe bbi bbk bbn bbo bbp bbr be- beb bee bei bek ben beo bep ber bi- bib bie bii bij bik bin bio bip bir bji bjj bjk bjn bjp bjr bkb bke bkk bkn bko bkp bkr bnb bne bni bnj bnk bnn bno bnp bnr bob boe boi boj bok bon boo bop bor bpb bpe bpi bpn bpo bpp bpr brb bre bri brj brk brn bro brp brr ebb ebe ebi ebj ebk ebn ebo ebp ebr eeb eee eek een eeo eep eer eib eie eii eij eik ein eio eip eir eji ejo ejp ekb eke eki eko ekp ekr en- enb ene eni enk enn eno enp enr eo- eob eoe eoi eok eon eoo eop eor ep- epb epe epi epn epo epp epr erb ere eri erk ern ero erp err ibb ibe ibi ibj ibk ibn ibo ibp ibr ie- iee iei iej iek ien iep ier iib iie iii iij iin iio iip iir ijb ije iji ijk ijn ijo ikb ike iki ikk iko ikr in- inb ine ini inj ink inn ino inp inr io- iob ioe ioi ioj ion ioo iop ior ipb ipe ipi ipn ipo ipp ipr ir- irb ire iri irj irk irn iro irp irr j-i jbi jbj jbk jbo jbr jeb jee jei jej jek jen jeo jep jer jib jie jii jij jin jio jip jir jjb jjj jjk jjp jjr jkb jkk jkn jko jkp jkr jne jnj jnn jno jnp jnr job joe joi joj jok jon joo jop jor jpb jpe jpi jpj jpn jpo jpp jpr jrb jri jrk jrn jro jrp jrr kbb kbe kbi kbk kbn kbo kbp kbr ke- keb kee kei kek ken keo kep ker kib kie kii kij kik kin kio kip kir kjb kje kji kjr kkb kke kki kkk kkn kkp kkr kn- kne kni knk knn kno knp knr kob koe koi kok kon koo kop kor kpe kpi kpk kpn kpo kpp kpr kri krk krn kro krp krr n-i nbb nbe nbi nbk nbn nbo nbp nbr ne- neb nee nei nej nek nen neo nep ner nib nie nii nik nin nio nip nir nje njk njn njp nke nki nkj nkk nkn nko nkp nkr nnb nne nni nnk nnn nno nnp no- nob noe noi noj nok non noo nop nor npb npe npi npn npo npp npr nrb nre nri nrj nrk nrn nro nrp nrr o-i ob- obb obe obi obj obk obn obo obp obr oeb oee oei oen oeo oep oer oib oie oii oik oin oio oip oir ojb oje oji ojo okb oke oki okj okk oko okp okr on- onb one oni onj onk onn ono onp onr oo- oob ooi ook oon ooo oop oor op- opb ope opi opj opk opn opo opp opr or- orb ore ori ork orn oro orp orr p-p pbb pbe pbi pbj pbk pbn pbo pbp pbr peb pee pei pek pen peo pep per pib pie pii pij pik pin pio pip pir pji pjo pjp pkb pke pki pkn pko pkp pkr pn- pnb pne pni pnk pnn pno pnp pnr pob poe poi pok pon poo pop por ppb ppe ppi ppj ppk ppn ppo ppp ppr prb pre pri prk prn pro prp prr rbb rbe rbi rbk rbn rbo rbp rbr re- reb ree rei rek ren reo rep rer rib rie rii rik rin rio rip rir rjk rjp rjr rkb rke rkk rko rkp rnb rni rnn rno rnp rnr rob roe roi roj rok ron roo rop ror rpb rpe rpi rpk rpn rpo rpp rpr rrb rri rrk rrn rrp rrr