-al -ic -ol a-a a-b a-c a-i a-t aaa aab aac aag aai aal aao aas aat ab- aba abb abc abg abi abl abo abs abt ac- aca acb acc acg aci acl aco acs act ag- aga agb agc agg agi agl ago ags agt ai- aia aib aic aig aii ail aio ais ait al- ala alb alc alg ali all alo als alt aoa aob aoc aog aoi aol aoo aos aot as- asa asb asc asg asi asl aso ass ast at- ata atb atc atg ati atl ato ats att baa bab bac bag bai bal bao bas bat bba bbb bbc bbg bbi bbl bbo bbs bbt bca bcb bcc bcg bci bcl bco bcs bct bga bgb bgc bgg bgi bgl bgo bgs bgt bi- bia bib bic big bii bil bio bis bit bla blb blc blg bli bll blo bls blt boa bob boc bog boi bol boo bos bot bsa bsb bsc bsg bsi bsl bso bss bst bta btb btc btg bti btl bto bts btt c-- caa cab cac cag cai cal cao cas cat cba cbb cbc cbg cbi cbl cbo cbs cbt cca ccb ccc ccg cci ccl cco ccs cct cga cgb cgc cgg cgi cgl cgo cgs cgt ci- cia cib cic cig cii cil cio cis cit cl- cla clb clc clg cli cll clo cls clt co- coa cob coc cog coi col coo cos cot csa csb csc csg csi csl cso css cst cta ctb ctc ctg cti ctl cto cts ctt gaa gab gac gag gai gal gao gas gat gba gbc gbg gbi gbl gbo gbs gbt gca gcb gcc gcg gci gcl gco gcs gct gga ggb ggc ggg ggi ggo ggs ggt gia gib gic gig gii gil gio gis git gla glb glc glg gli gll glo gls glt goa gob goc gog goi gol goo gos got gsa gsb gsc gsg gsi gsl gso gss gst gta gtb gtc gtg gti gtl gto gts gtt ia- iaa iab iac iag iai ial iao ias iat iba ibb ibc ibg ibi ibl ibo ibs ibt ica icb icc icg ici icl ico ics ict iga igb igc igg igi igl igo igs igt iia iib iic iii iil iio iis iit il- ila ilb ilc ilg ili ill ilo ils ilt io- ioa iob ioc iog ioi iol ioo ios iot is- isa isb isc isg isi isl iso iss ist ita itb itc itg iti itl ito its itt la- laa lab lac lag lai lal lao las lat lba lbb lbc lbg lbi lbl lbo lbs lbt lca lcb lcc lcg lci lcl lco lcs lct lga lgb lgc lgg lgi lgl lgo lgs lgt lia lib lic lig lii lil lio lis lit lla llb llc llg lli lll llo lls llt loa lob loc log loi lol loo los lot lsa lsb lsc lsg lsi lsl lso lss lst lta ltb ltc ltg lti ltl lto lts ltt o-i oaa oab oac oag oai oal oao oas oat ob- oba obb obc obg obi obl obo obs obt oc- oca ocb occ ocg oci ocl oco ocs oct oga ogc ogg ogi ogl ogo ogs ogt oia oib oic oii oil oio ois oit ola olb olc olg oli oll olo ols olt oo- ooa oob ooc oog ooi ool ooo oos oot os- osa osb osc osg osi osl oso oss ost ot- ota otb otc otg oti otl oto ots ott saa sab sac sag sai sal sao sas sat sba sbb sbc sbg sbi sbl sbo sbs sbt sca scb scc scg sci scl sco scs sct sga sgb sgc sgg sgi sgl sgo sgs sgt sia sib sic sig sii sil sio sis sit sla slb slc slg sli sll slo sls slt soa sob soc sog soi sol soo sos sot ss- ssa ssb ssc ssg ssi ssl sso sss sst sta stb stc stg sti stl sto sts stt taa tab tac tag tai tal tao tas tat tba tbb tbc tbg tbi tbl tbo tbs tbt tca tcb tcc tcg tci tcl tco tcs tct tga tgb tgc tgg tgi tgl tgo tgs tgt tia tib tic tig tii til tio tis tit tla tlc tlg tli tll tlo tls tlt to- toa tob toc tog toi tol too tos tot tsa tsb tsc tsg tsi tsl tso tss tst tta ttb ttc ttg tti ttl tto tts ttt