-al -ol a-a a-b a-c a-t aaa aab aac aal aao aar aas aat aau ab- aba abb abc abl abo abr abs abt abu ac- aca acb acc acl aco acr acs act acu al- ala alb alc all alo alr als alt alu aoa aob aoc aol aoo aor aos aot aou ar- ara arb arc arl aro arr ars art aru as- asa asb asc asl aso asr ass ast asu at- ata atb atc atl ato atr ats att atu au- aua aub auc aul auo aur aus aut b-u baa bab bac bal bao bar bas bat bau bba bbb bbc bbl bbo bbr bbs bbt bbu bca bcb bcc bcl bco bcr bcs bct bcu bla blb blc bll blo blr bls blt blu boa bob boc bol boo bor bos bot bou bra brb brl bro brr brs brt bru bsa bsb bsc bsl bso bsr bss bst bsu bta btb btc btl bto btr bts btt btu bua bub buc bul buo bur bus but buu c-- caa cab cac cal cao car cas cat cau cba cbb cbc cbl cbo cbr cbs cbt cbu cca ccb ccc ccl cco ccr ccs cct ccu cl- cla clb clc cll clo clr cls clt clu co- coa cob coc col coo cor cos cot cou cra crb crc crl cro crr crs crt cru csa csb csc csl cso csr css cst csu cta ctb ctc ctl cto ctr cts ctt ctu cua cub cuc cul cuo cur cus cut cuu la- laa lab lac lal lao lar las lat lau lba lbb lbc lbl lbo lbr lbs lbt lbu lca lcb lcc lcl lco lcr lcs lct lcu lla llb llc lll llo llr lls llt llu loa lob loc lol loo lor los lot lou lra lrb lrc lro lrr lrs lrt lru lsa lsb lsc lsl lso lsr lss lst lsu lta ltb ltc ltl lto ltr lts ltt ltu lua lub luc lul luo lur lus lut luu oaa oab oac oal oao oar oas oat oau ob- oba obb obc obl obo obr obs obt obu oc- oca ocb occ ocl oco ocr ocs oct ocu ola olb olc oll olo ols olt olu oo- ooa oob ooc ool ooo oor oos oot or- ora orb orc orl oro orr ors ort oru os- osa osb osc osl oso osr oss ost osu ot- ota otb otc otl oto otr ots ott otu ou- oua ouc oul ouo our ous out ra- raa rab rac ral rao rar ras rat rau rba rbb rbc rbl rbo rbr rbs rbt rbu rca rcb rcc rcl rco rcr rcs rct rcu rla rlc rll rlo rlr rls rlt rlu roa rob roc rol roo ror ros rot rou rra rrb rrc rrl rrr rrs rrt rru rsa rsb rsc rsl rso rsr rss rst rsu rta rtb rtc rtl rto rtr rts rtt rtu rua rub ruc ruo rur rus rut ruu saa sab sac sal sao sar sas sat sau sba sbb sbc sbl sbo sbr sbs sbt sbu sca scb scc scl sco scr scs sct scu sla slb slc sll slo slr sls slt slu soa sob soc sol soo sor sos sot sou sr- sra srb src srl sro srr srs srt ss- ssa ssb ssc ssl sso ssr sss sst ssu sta stb stc stl sto str sts stt stu sua sub suc sul suo sur sus sut suu taa tab tac tal tao tar tas tat tau tba tbb tbc tbl tbo tbr tbs tbt tbu tca tcb tcc tcl tco tcr tcs tct tcu tla tlc tll tlo tlr tls tlt tlu to- toa tob toc tol too tor tos tot tou tra trb trc trl tro trr trs trt tru tsa tsb tsc tsl tso tsr tss tst tsu tta ttb ttc ttl tto ttr tts ttt ttu tua tub tuc tul tuo tur tus tut tuu ua- uaa uab uac ual uao uar uas uat uau uba ubb ubc ubl ubo ubr ubs ubt ubu uca ucb ucc ucl uco ucr ucs uct ucu ula ulb ulc ull ulo ulr uls ult ulu uoa uob uoc uol uoo uor uos uot ur- ura urb urc url uro urr urs urt uru usa usb usc usl uso usr uss ust usu uta utb utc utl uto utr uts utt utu uua uuc uur uus uut uuu

-ous aaaa aaab aaac aaal aaar aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aaco aacr aacs aact aacu aala aalc aall aalo aals aalu aaoo aara aarc aaro aars aart aaru aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abal abar abas abat abau abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcl abcr abcs abct abla ablo abls aboa abob abol aboo abor abos abot abou abra abrc abro abrs abs- absa absl abss absu abta abts abtu abua abul abus abut ac-t acaa acab acac acar acas acat acba acbl acca accc acco accs acct accu acla aclc aclr acls aclu acoa acol acor acos acot acou acr- acra acrc acro acrr acrs acsa acsc acsl acss acst acta actc actl acto acts actt actu acu- acul acuo acur acus acut alaa alac alal alao alar alas alat alau alb- alba albc albo albs albu alca alcc alco alcs all- alla alll allo allr alls allu aloa aloc alol aloo alor alos alot alou alro alsa alsc also alst alta alto alts alua alur alus alut aoba aoca aocs aola aora aorb aors aort aoss aotc aoul aous aout arab arac aral arar aras arat arau arba arbs arc- arca arco arcs arct arla arlo aroa arob aroo aror aros arr- arra arrc arro arrr arrs arrt arru ars- arsa arsc arso arst arsu arta artc arto artr arts arua arub arul arut asaa asab asac asal asao asar asas asat asau asba asbo asbu