-al -ol a-a a-b a-c a-t aaa aab aac aag aal aao aar aat ab- aba abb abc abg abl abo abr abt ac- aca acb acc acg acl aco acr act ag- aga agb agc agg agl ago agr agt al- ala alb alc alg all alo alr alt aoa aob aoc aog aol aoo aor aot ar- ara arb arc arg arl aro arr art at- ata atb atc atg atl ato atr att baa bab bac bag bal bao bar bat bba bbb bbc bbg bbl bbo bbr bbt bca bcb bcc bcg bcl bco bcr bct bga bgb bgc bgg bgl bgo bgr bgt bla blb blc blg bll blo blr blt boa bob boc bog bol boo bor bot bra brb brg brl bro brr brt bta btb btc btg btl bto btr btt c-- caa cab cac cag cal cao car cat cba cbb cbc cbg cbl cbo cbr cbt cca ccb ccc ccg ccl cco ccr cct cga cgb cgc cgg cgl cgo cgr cgt cl- cla clb clc clg cll clo clr clt co- coa cob coc cog col coo cor cot cra crb crc crg crl cro crr crt cta ctb ctc ctg ctl cto ctr ctt gaa gab gac gag gal gao gar gat gba gbc gbg gbl gbo gbr gbt gca gcb gcc gcg gcl gco gcr gct gga ggb ggc ggg ggo ggr ggt gla glb glc glg gll glo glr glt goa gob goc gog gol goo gor got gra grb grc grg grl gro grr grt gta gtb gtc gtg gtl gto gtr gtt la- laa lab lac lag lal lao lar lat lba lbb lbc lbg lbl lbo lbr lbt lca lcb lcc lcg lcl lco lcr lct lga lgb lgc lgg lgl lgo lgr lgt lla llb llc llg lll llo llr llt loa lob loc log lol loo lor lot lra lrb lrc lrg lro lrr lrt lta ltb ltc ltg ltl lto ltr ltt oaa oab oac oag oal oao oar oat ob- oba obb obc obg obl obo obr obt oc- oca ocb occ ocg ocl oco ocr oct oga ogc ogg ogl ogo ogt ola olb olc olg oll olo olt oo- ooa oob ooc oog ool ooo oor oot or- ora orb orc org orl oro orr ort ot- ota otb otc otg otl oto otr ott ra- raa rab rac rag ral rao rar rat rba rbb rbc rbg rbl rbo rbr rbt rca rcb rcc rcg rcl rco rcr rct rga rgb rgc rgg rgo rgr rgt rla rlc rlg rll rlo rlr rlt roa rob roc rog rol roo ror rot rra rrb rrc rrg rrl rrr rrt rta rtb rtc rtg rtl rto rtr rtt taa tab tac tag tal tao tar tat tba tbb tbc tbg tbl tbo tbr tbt tca tcb tcc tcg tcl tco tcr tct tga tgb tgc tgg tgl tgo tgr tgt tla tlc tlg tll tlo tlr tlt to- toa tob toc tog tol too tor tot tra trb trc trg trl tro trr trt tta ttb ttc ttg ttl tto ttr ttt

aaaa aaab aaac aaal aaar aaba aabb aabc aabl aabt aaca aacb aacc aacl aaco aacr aact aala aalc aall aalo aaoo aara aarc aaro aart aata aatc aatt abaa abab abac abag abal abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abcl abcr abct abgl abla ablo aboa abob abol aboo abor abot abra abrc abro abta ac-t acaa acab acac acag acar acat acba acbl acca accc acco acct acga acgr acla aclc aclr acoa acog acol acor acot acr- acra acrc acro acrr acta actc actg actl acto actt ag-o agac agag agal agao agar agat agba agbo agca agcc agco agct agga agla aglc agob agog agol agoo agot agra agrl agro agta agtr alaa alac alag alal alao alar alat alb- alba albc albo alca alcc alco alg- alga algo all- alla alll allo allr aloa aloc alog alol aloo alor alot alro alta alto aoba aoca aola aora aorb aort aotc arab arac arag aral arar arat arba arc- arca arco arct arga argb argo arla arlo aroa arob aroo aror arr- arra arrc arrg arro arrr arrt arta artc arto artr at-l at-t ataa atab atac atal atar atat atca atcc atcl atco atcr atgo atla atlo atob atoc atol ator atot atra atrc atro atta atto attr baaa baal baar baat baba babb babo babr bac- baca bacc baco bact baga bagg bago bagt bala balc ball balo balt baol bar- bara barb barc barg baro barr bart bata batc bato batt bbbb bbga bblb bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bccl bcor bcra bctc bgca blaa blab blac blag blat blbt blob bloc blog bloo blot blrc blrg boab boac boag boal boar boat boba bobb bobo boca boco boga bogg bogo bogt bola bolg boll bolo bolt boob booc boog bool boor boot bor- bora borg boro borr bort bota botb boto bott brab brac brag brao brat brca brcb broa brob broc brog brol broo bror brot brrr brtc btaa btcc btcl btla btob btor btrc btrt bttb c-bo caaa caab caac caal caat caba cabg cabo cac- caca cacc caco cacr caga cagg cago cagr cala calc call calo calt caol caor cara carb carc carl caro carr cart cat- cata catb catc cato catt cbac cbal cbar cbat cbbc cbca cbcc cbcl cbcr cbct cbga cbgb cblb cblc cbol cbot cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccag ccar ccat ccba ccbc ccca cccb cccc cccl ccga ccgc ccgt ccla cclc cclg ccob ccoc ccra ccrc ccrg ccrl ccrt cctb cctc cctl cctt cgac cgal cgcc cgcg cgro cgtl clab clag clar clat clob clog cloo clor clot clra clro cltb cltc coag coal coat coba cobb cobo coca coco coct cogo col- cola colb coll colo colt coob cool coot cor- cora corb corc corg