-er -ic b-p bbb bbc bbe bbg bbi bbn bbo bbp bbr bbs bcb bcc bce bcg bci bcn bco bcp bcr bcs bcv be- beb bec bee beg bei ben beo bep ber bes bev bgb bgc bge bgg bgi bgn bgo bgp bgr bgs bgv bi- bib bic bie big bii bin bio bip bir bis biv bnb bnc bne bng bni bnn bno bnp bnr bns bnv bob boc boe bog boi bon boo bop bor bos bov bpb bpc bpe bpg bpi bpn bpo bpp bpr bps bpv brb bre brg bri brn bro brp brr brs brv bsb bsc bse bsg bsi bsn bso bsp bsr bss bsv bvb bvc bve bvg bvi bvn bvo bvp bvr bvs bvv c-- cbb cbc cbe cbg cbi cbn cbo cbp cbr cbs cbv ccb ccc cce ccg cci ccn cco ccp ccr ccs ccv ce- ceb cec cee ceg cei cen ceo cep cer ces cev cgb cgc cge cgg cgi cgn cgo cgp cgr cgs cgv ci- cib cic cie cig cii cin cio cip cir cis civ cn- cnb cnc cne cng cni cnn cno cnp cnr cns cnv co- cob coc coe cog coi con coo cop cor cos cov cpb cpc cpe cpg cpi cpn cpo cpp cpr cps cpv crb crc cre crg cri crn cro crp crr crs crv csb csc cse csg csi csn cso csp csr css csv cvb cvc cve cvg cvi cvn cvo cvp cvr cvs cvv ebb ebc ebe ebg ebi ebn ebo ebp ebr ebs ebv ec- ecb ecc ece ecg eci ecn eco ecr ecs ecv eeb eec eee eeg een eeo eep eer ees eev egb egc ege egg egi egn ego egp egr egs eib eic eie eig eii ein eio eip eir eis eiv en- enb enc ene eng eni enn eno enp enr ens env eo- eob eoc eoe eog eoi eon eoo eop eor eos ep- epb epc epe epg epi epn epo epp epr eps erb erc ere erg eri ern ero erp err ers erv es- esb esc ese esg esi esn eso esp esr ess esv evb evc eve evg evi evn evo evp evr evs evv g-p gbc gbe gbg gbi gbn gbo gbp gbr gbs gbv gcb gcc gce gcg gci gcn gco gcp gcr gcs ge- geb gec gee geg gei gen geo gep ger ges gev ggb ggc ggg ggi ggn ggo ggp ggr ggs ggv gib gic gie gig gii gin gio gip gir gis giv gnb gnc gne gni gnn gno gnp gnr gns gnv gob goc goe gog goi gon goo gop gor gos gov gpb gpc gpe gpg gpi gpn gpo gpp gpr gps grb grc gre grg gri grn gro grp grr grs grv gsb gsc gse gsg gsi gsn gso gsp gsr gss gsv gvb gvc gve gvg gvi gvn gvo gvp gvr gvs i-v ibb ibc ibe ibg ibi ibn ibo ibp ibr ibs ibv icb icc ice icg ici icn ico icp icr ics icv ie- iec iee ieg iei ien iep ier ies iev igb igc ige igg igi ign igo igp igr igs iib iic iie iii iin iio iip iir iis in- inb inc ine ing ini inn ino inp inr ins inv io- iob ioc ioe iog ioi ion ioo iop ior ios iov ipb ipc ipe ipg ipi ipn ipo ipp ipr ips ipv ir- irb irc ire irg iri irn iro irp irr irs irv is- isb isc ise isg isi isn iso isp isr iss isv ivb ivc ive ivg ivi ivo ivp ivr ivs ivv n-i nbb nbc nbe nbg nbi nbn nbo nbp nbr nbs nbv ncb ncc nce ncg nci ncn nco ncp ncr ncs ncv ne- neb nec nee neg nei nen neo nep ner nes nev ngb ngc nge ngg ngi ngn ngo ngp ngs nib nic nie nig nii nin nio nip nir nis niv nnb nnc nne nng nni nnn nno nnp nns nnv no- nob noc noe nog noi non noo nop nor nos nov npb npc npe npg npi npn npo npp npr nps npv nrb nrc nre nrg nri nrn nro nrp nrr nrs nrv nsb nsc nse nsg nsi nsn nso nsp nsr nss nsv nvb nvc nve nvg nvi nvn nvp nvv o-i ob- obb obc obe obg obi obn obo obp obr obs obv oc- ocb occ ocg oci ocn oco ocp ocr ocs ocv oeb oec oee oeg oei oen oeo oep oer oes ogc oge ogg ogi ogn ogo ogp ogs oib oic oie oii oin oio oip oir ois oiv on- onb onc one ong oni onn ono onp onr ons oo- oob ooc oog ooi oon ooo oop oor oos oov op- opb opc ope opg opi opn opo opp opr ops opv or- orb orc ore org ori orn oro orp orr ors orv os- osb osc ose osg osi osn oso osp osr oss osv ov- ovb ovc ove ovi ovo ovp ovs ovv p-p pbb pbc pbe pbg pbi pbn pbo pbp pbr pbs pcb pcc pce pcg pci pcn pco pcp pcr pcs pcv peb pec pee peg pei pen peo pep per pes pev pgb pgc pge pgg pgi pgn pgo pgp pgr pgs pgv pib pic pie pig pii pin pio pip pir pis piv pn- pnb pnc pne png pni pnn pno pnp pnr pns pnv pob poc poe pog poi pon poo pop por pos pov ppb ppc ppe ppg ppi ppn ppo ppp ppr pps ppv prb prc pre prg pri prn pro prp prr prs prv ps- psb psc pse psg psi psn pso psp psr pss psv pvb pvc pve pvg pvi pvn pvo pvp pvr pvs pvv rbb rbc rbe rbg rbi rbn rbo rbp rbr rbs rcb rcc rce rcg rci rcn rco rcp rcr rcs rcv re- reb rec ree reg rei ren reo rep rer