-al -er -ol a-a a-b a-c a-t aaa aab aac aae aal aao aap aar aas aat ab- aba abb abc abe abl abo abp abr abs abt ac- aca acb acc ace acl aco acp acr acs act aea aeb aec aee ael aeo aep aer aes aet al- ala alb alc ale all alo alp alr als alt aoa aob aoc aoe aol aoo aop aor aos aot ap- apa apb apc ape apl apo app apr aps apt ar- ara arb arc are arl aro arp arr ars art as- asa asb asc ase asl aso asp asr ass ast at- ata atb atc ate atl ato atp atr ats att b-p baa bab bac bae bal bao bap bar bas bat bba bbb bbc bbe bbl bbo bbp bbr bbs bbt bca bcb bcc bce bcl bco bcp bcr bcs bct be- bea beb bec bee bel beo bep ber bes bet bla blb blc ble bll blo blp blr bls blt boa bob boc boe bol boo bop bor bos bot bpa bpb bpc bpe bpl bpo bpp bpr bps bpt bra brb bre brl bro brp brr brs brt bsa bsb bsc bse bsl bso bsp bsr bss bst bta btb btc bte btl bto btp btr bts btt c-- caa cab cac cae cal cao cap car cas cat cba cbb cbc cbe cbl cbo cbp cbr cbs cbt cca ccb ccc cce ccl cco ccp ccr ccs cct ce- cea ceb cec cee cel ceo cep cer ces cet cl- cla clb clc cle cll clo clp clr cls clt co- coa cob coc coe col coo cop cor cos cot cpa cpb cpc cpe cpl cpo cpp cpr cps cpt cra crb crc cre crl cro crp crr crs crt csa csb csc cse csl cso csp csr css cst cta ctb ctc cte ctl cto ctp ctr cts ctt eaa eab eac eae eal eao eap ear eas eat eba ebb ebc ebe ebl ebo ebp ebr ebs ebt ec- eca ecb ecc ece ecl eco ecr ecs ect eea eeb eec eee eel eeo eep eer ees eet ela elb elc ele ell elo elp elr els elt eo- eoa eob eoc eoe eol eoo eop eor eos eot ep- epa epb epc epe epl epo epp epr eps ept era erb erc ere erl ero erp err ers ert es- esa esb esc ese esl eso esp esr ess est eta etb etc ete etl eto etp etr ets ett l-p la- laa lab lac lae lal lao lap lar las lat lba lbb lbc lbe lbl lbo lbp lbr lbs lbt lca lcb lcc lce lcl lco lcp lcr lcs lct lea leb lec lee lel leo lep ler les let lla llb llc lle lll llo llp llr lls llt loa lob loc loe lol loo lop lor los lot lpa lpb lpc lpe lpl lpo lpp lpr lps lpt lra lrb lrc lro lrp lrr lrs lrt lsa lsb lsc lse lsl lso lsp lsr lss lst lta ltb ltc lte ltl lto ltp ltr lts ltt oaa oab oac oae oal oao oap oar oas oat ob- oba obb obc obe obl obo obp obr obs obt oc- oca ocb occ ocl oco ocp ocr ocs oct oea oeb oec oee oel oeo oep oer oes oet ola olb olc ole oll olo olp ols olt oo- ooa oob ooc ool ooo oop oor oos oot op- opa opb opc ope opl opo opp opr ops opt or- ora orb orc ore orl oro orp orr ors ort os- osa osb osc ose osl oso osp osr oss ost ot- ota otb otc ote otl oto otp otr ots ott p-p paa pab pac pae pal pao pap par pas pat pba pbb pbc pbe pbl pbo pbp pbr pbs pbt pca pcb pcc pce pcl pco pcp pcr pcs pct pea peb pec pee pel peo pep per pes pet pla plb plc ple pll plo plp plr pls plt poa pob poc poe pol poo pop por pos pot ppa ppb ppc ppe ppl ppo ppp ppr pps ppt pra prb prc pre prl pro prp prr prs prt ps- psa psb psc pse psl pso psp psr pss pst pt- pta ptb ptc pte ptl pto ptp ptr pts ptt ra- raa rab rac rae ral rao rap rar ras rat rba rbb rbc rbe rbl rbo rbp rbr rbs rbt rca rcb rcc rce rcl rco rcp rcr rcs rct re- rea reb rec ree rel reo rep rer res ret rla rlc rle rll rlo rlp rlr rls rlt roa rob roc roe rol roo rop ror ros rot rpa rpb rpc rpe rpl rpo rpp rpr rps rpt rra rrb rrc rrl rrp rrr rrs rrt rsa rsb rsc rse rsl rso rsp rsr rss rst rta rtb rtc rte rtl rto rtp rtr rts rtt saa sab sac sae sal sao sap sar sas sat sba sbb sbc sbe sbl sbo sbp sbr sbs sbt sca scb scc sce scl sco scp scr scs sct se- sea seb sec see sel seo sep ser ses set sla slb slc sle sll slo slp slr sls slt soa sob soc soe sol soo sop sor sos sot spa spb spc spe spl spo spp spr sps spt sr- sra srb src sre srl sro srp srr srs srt ss- ssa ssb ssc sse ssl sso ssp ssr sss sst sta stb stc ste stl sto stp str sts stt taa tab tac tae tal tao tap tar tas tat tba tbb tbc tbe tbl tbo tbp tbr tbs tbt tca tcb tcc tce tcl tco tcp tcr tcs tct te- tea teb tec tee tel teo tep ter tes tet tla tlc tle tll tlo tlp tlr tls tlt to- toa tob toc toe tol too top tor tos tot tpa tpb tpc tpe tpl tpo tpp tpr