-er -ji b-p bbb bbe bbi bbn bbp bbr be- beb bee bei ben bep ber bi- bib bie bii bij bin bip bir bji bjj bjn bjp bjr bnb bne bni bnj bnn bnp bnr bpb bpe bpi bpn bpp bpr brb bre bri brj brn brp brr ebb ebe ebi ebj ebn ebp ebr eeb eee een eep eer eib eie eii eij ein eip eir eji ejp en- enb ene eni enn enp enr ep- epb epe epi epn epp epr erb ere eri ern erp err ibb ibe ibi ibj ibn ibp ibr ie- iee iei iej ien iep ier iib iie iii iij iin iip iir ijb ije iji ijn in- inb ine ini inj inn inp inr ipb ipe ipi ipn ipp ipr ir- irb ire iri irj irn irp irr j-i jbi jbj jbr jeb jee jei jej jen jep jer jib jie jii jij jin jip jir jjb jjj jjp jjr jne jnj jnn jnp jnr jpb jpe jpi jpj jpn jpp jpr jrb jri jrn jrp jrr n-i nbb nbe nbi nbn nbp nbr ne- neb nee nei nej nen nep ner nib nie nii nin nip nir nje njn njp nnb nne nni nnn nnp npb npe npi npn npp npr nrb nre nri nrj nrn nrp nrr p-p pbb pbe pbi pbj pbn pbp pbr peb pee pei pen pep per pib pie pii pij pin pip pir pji pjp pn- pnb pne pni pnn pnp pnr ppb ppe ppi ppj ppn ppp ppr prb pre pri prn prp prr rbb rbe rbi rbn rbp rbr re- reb ree rei ren rep rer rib rie rii rin rip rir rjp rjr rnb rni rnn rnp rnr rpb rpe rpi rpn rpp rpr rrb rri rrn rrp rrr