-al -ic -ol a-a a-c a-i aaa aac aaf aag aai aal aao aar ac- aca acc acf acg aci acl aco acr af- afa afc aff afg afi afl afo afr ag- aga agc agf agg agi agl ago agr ai- aia aic aif aig aii ail aio air al- ala alc alf alg ali all alo alr aoa aoc aof aog aoi aol aoo aor ar- ara arc arf arg ari arl aro arr c-- caa cac caf cag cai cal cao car cca ccc ccf ccg cci ccl cco ccr cfa cfc cff cfg cfi cfl cfo cfr cga cgc cgg cgi cgl cgo cgr ci- cia cic cif cig cii cil cio cir cl- cla clc clf clg cli cll clo clr co- coa coc cof cog coi col coo cor cra crc crf crg cri crl cro crr faa fac faf fag fai fal fao far fca fcc fcf fcg fci fcl fco fcr ffa ffc fff ffg ffi ffl ffo ffr fga fgc fgf fgg fgi fgl fgr fia fic fif fig fii fil fir fla flc flf flg fli fll flo flr foa foc fof fog foi fol foo for fra frc frf frg fri frl fro frr gaa gac gaf gag gai gal gao gar gca gcc gcf gcg gci gcl gco gcr gfa gfc gff gfi gfl gfo gfr gga ggc ggg ggi ggo ggr gia gic gif gig gii gil gio gir gla glc glf glg gli gll glo glr goa goc gof gog goi gol goo gor gra grc grf grg gri grl gro grr i-f ia- iaa iac iaf iag iai ial iao iar ica icc icf icg ici icl ico icr ifa ifc iff ifg ifi ifl ifo ifr iga igc igf igg igi igl igo igr iia iic iif iii iil iio iir il- ila ilc ilf ilg ili ill ilo ilr io- ioa ioc iof iog ioi iol ioo ior ir- ira irc irf irg iri irl iro irr la- laa lac laf lag lai lal lao lar lca lcc lcf lcg lci lcl lco lcr lfa lfc lff lfg lfi lfl lfo lfr lga lgc lgf lgg lgi lgl lgo lgr lia lic lif lig lii lil lio lir lla llc llf llg lli lll llo llr loa loc lof log loi lol loo lor lra lrc lrf lrg lri lro lrr o-i oaa oac oaf oag oai oal oao oar oc- oca occ ocf ocg oci ocl oco ocr of- ofa ofc off ofg ofi ofl ofo ofr oga ogc ogf ogg ogi ogl ogo oia oic oif oii oil oio oir ola olc olf olg oli oll olo oo- ooa ooc oof oog ooi ool ooo oor or- ora orc orf org ori orl oro orr ra- raa rac raf rag rai ral rao rar rca rcc rcf rcg rci rcl rco rcr rfa rfc rff rfg rfi rfl rfo rfr rga rgc rgf rgg rgi rgo rgr ria ric rif rig rii ril rio rir rla rlc rlf rlg rli rll rlo rlr roa roc rof rog roi rol roo ror rra rrc rrf rrg rri rrl rrr