-al -ic -ol a-a a-c a-i a-t aaa aac aag aai aal aao aap aar aat ac- aca acc acg aci acl aco acp acr act ag- aga agc agg agi agl ago agp agr agt ai- aia aic aig aii ail aio aip air ait al- ala alc alg ali all alo alp alr alt aoa aoc aog aoi aol aoo aop aor aot ap- apa apc apg api apl apo app apr apt ar- ara arc arg ari arl aro arp arr art at- ata atc atg ati atl ato atp atr att c-- caa cac cag cai cal cao cap car cat cca ccc ccg cci ccl cco ccp ccr cct cga cgc cgg cgi cgl cgo cgp cgr cgt ci- cia cic cig cii cil cio cip cir cit cl- cla clc clg cli cll clo clp clr clt co- coa coc cog coi col coo cop cor cot cpa cpc cpg cpi cpl cpo cpp cpr cpt cra crc crg cri crl cro crp crr crt cta ctc ctg cti ctl cto ctp ctr ctt g-p gaa gac gag gai gal gao gap gar gat gca gcc gcg gci gcl gco gcp gcr gct gga ggc ggg ggi ggo ggp ggr ggt gia gic gig gii gil gio gip gir git gla glc glg gli gll glo glp glr glt goa goc gog goi gol goo gop gor got gpa gpc gpg gpi gpl gpo gpp gpr gpt gra grc grg gri grl gro grp grr grt gta gtc gtg gti gtl gto gtp gtr gtt ia- iaa iac iag iai ial iao iap iar iat ica icc icg ici icl ico icp icr ict iga igc igg igi igl igo igp igr igt iia iic iii iil iio iip iir iit il- ila ilc ilg ili ill ilo ilp ilr ilt io- ioa ioc iog ioi iol ioo iop ior iot ipa ipc ipg ipi ipl ipo ipp ipr ipt ir- ira irc irg iri irl iro irp irr irt ita itc itg iti itl ito itp itt l-p la- laa lac lag lai lal lao lap lar lat lca lcc lcg lci lcl lco lcp lcr lct lga lgc lgg lgi lgl lgo lgp lgr lgt lia lic lig lii lil lio lip lir lit lla llc llg lli lll llo llp llr llt loa loc log loi lol loo lop lor lot lpa lpc lpg lpi lpl lpo lpp lpr lpt lra lrc lrg lri lro lrp lrr lrt lta ltc ltg lti ltl lto ltp ltr ltt o-i oaa oac oag oai oal oao oap oar oat oc- oca occ ocg oci ocl oco ocp ocr oct oga ogc ogg ogi ogl ogo ogp ogt oia oic oii oil oio oip oir oit ola olc olg oli oll olo olp olt oo- ooa ooc oog ooi ool ooo oop oor oot op- opa opc opg opi opl opo opp opr opt or- ora orc org ori orl oro orp orr ort ot- ota otc otg oti otl oto otp otr ott p-p paa pac pag pai pal pao pap par pat pca pcc pcg pci pcl pco pcp pcr pct pga pgc pgg pgi pgl pgo pgp pgr pgt pia pic pig pii pil pio pip pir pit pla plc plg pli pll plo plp plr plt poa poc pog poi pol poo pop por pot ppa ppc ppg ppi ppl ppo ppp ppr ppt pra prc prg pri prl pro prp prr prt pt- pta ptc ptg pti ptl pto ptp ptr ptt ra- raa rac rag rai ral rao rap rar rat rca rcc rcg rci rcl rco rcp rcr rct rga rgc rgg rgi rgo rgp rgr rgt ria ric rig rii ril rio rip rir rit rla rlc rlg rli rll rlo rlp rlr rlt roa roc rog roi rol roo rop ror rot rpa rpc rpg rpi rpl rpo rpp rpr rpt rra rrc rrg rri rrl rrp rrr rrt rta rtc rtg rti rtl rto rtp rtr rtt taa tac tag tai tal tao tap tar tat tca tcc tcg tci tcl tco tcp tcr tct tga tgc tgg tgi tgl tgo tgp tgr tgt tia tic tig tii til tio tip tir tit tla tlc tlg tli tll tlo tlp tlr tlt to- toa toc tog toi tol too top tor tot tpa tpc tpg tpi tpl tpo tpp tpr tpt tra trc trg tri trl tro trp trr trt tta ttc ttg tti ttl tto ttp ttr ttt