-al -ic -ol a-a a-c a-i aaa aac aae aag aai aal aao aap ac- aca acc ace acg aci acl aco acp aea aec aee aeg aei ael aeo aep ag- aga agc age agg agi agl ago agp ai- aia aic aie aig aii ail aio aip al- ala alc ale alg ali all alo alp aoa aoc aoe aog aoi aol aoo aop ap- apa apc ape apg api apl apo app c-- caa cac cae cag cai cal cao cap cca ccc cce ccg cci ccl cco ccp ce- cea cec cee ceg cei cel ceo cep cga cgc cge cgg cgi cgl cgo cgp ci- cia cic cie cig cii cil cio cip cl- cla clc cle clg cli cll clo clp co- coa coc coe cog coi col coo cop cpa cpc cpe cpg cpi cpl cpo cpp eaa eac eae eag eai eal eao eap ec- eca ecc ece ecg eci ecl eco eea eec eee eeg eel eeo eep ega egc ege egg egi egl ego egp eia eic eie eig eii eil eio eip ela elc ele elg eli ell elo elp eo- eoa eoc eoe eog eoi eol eoo eop ep- epa epc epe epg epi epl epo epp g-p gaa gac gae gag gai gal gao gap gca gcc gce gcg gci gcl gco gcp ge- gea gec gee geg gei gel geo gep gga ggc ggg ggi ggo ggp gia gic gie gig gii gil gio gip gla glc gle glg gli gll glo glp goa goc goe gog goi gol goo gop gpa gpc gpe gpg gpi gpl gpo gpp ia- iaa iac iae iag iai ial iao iap ica icc ice icg ici icl ico icp ie- iea iec iee ieg iei iel iep iga igc ige igg igi igl igo igp iia iic iie iii iil iio iip il- ila ilc ile ilg ili ill ilo ilp io- ioa ioc ioe iog ioi iol ioo iop ipa ipc ipe ipg ipi ipl ipo ipp l-p la- laa lac lae lag lai lal lao lap lca lcc lce lcg lci lcl lco lcp lea lec lee leg lei lel leo lep lga lgc lge lgg lgi lgl lgo lgp lia lic lie lig lii lil lio lip lla llc lle llg lli lll llo llp loa loc loe log loi lol loo lop lpa lpc lpe lpg lpi lpl lpo lpp o-i oaa oac oae oag oai oal oao oap oc- oca occ ocg oci ocl oco ocp oea oec oee oeg oei oel oeo oep oga ogc oge ogg ogi ogl ogo ogp oia oic oie oii oil oio oip ola olc ole olg oli oll olo olp oo- ooa ooc oog ooi ool ooo oop op- opa opc ope opg opi opl opo opp p-p paa pac pae pag pai pal pao pap pca pcc pce pcg pci pcl pco pcp pea pec pee peg pei pel peo pep pga pgc pge pgg pgi pgl pgo pgp pia pic pie pig pii pil pio pip pla plc ple plg pli pll plo plp poa poc poe pog poi pol poo pop ppa ppc ppe ppg ppi ppl ppo ppp