-al a-a a-c a-t aaa aac aaf aal aar aas aat ac- aca acc acf acl acr acs act af- afa afc aff afl afr afs aft al- ala alc alf all alr als alt ar- ara arc arf arl arr ars art as- asa asc asf asl asr ass ast at- ata atc atf atl atr ats att c-- caa cac caf cal car cas cat cca ccc ccf ccl ccr ccs cct cfa cfc cff cfl cfr cfs cft cl- cla clc clf cll clr cls clt cra crc crf crl crr crs crt csa csc csf csl csr css cst cta ctc ctf ctl ctr cts ctt faa fac faf fal far fas fat fca fcc fcf fcl fcr fcs fct ffa ffc fff ffl ffr ffs fft fla flc flf fll flr fls flt fra frc frf frl frr frs frt fsa fsc fsf fsl fsr fss fst fta ftc ftf ftl ftr fts ftt la- laa lac laf lal lar las lat lca lcc lcf lcl lcr lcs lct lfa lfc lff lfl lfr lfs lft lla llc llf lll llr lls llt lra lrc lrf lrr lrs lrt lsa lsc lsf lsl lsr lss lst lta ltc ltf ltl ltr lts ltt ra- raa rac raf ral rar ras rat rca rcc rcf rcl rcr rcs rct rfa rfc rff rfl rfr rfs rft rla rlc rlf rll rlr rls rlt rra rrc rrf rrl rrr rrs rrt rsa rsc rsf rsl rsr rss rst rta rtc rtf rtl rtr rts rtt saa sac saf sal sar sas sat sca scc scf scl scr scs sct sfa sfc sff sfl sfr sfs sft sla slc slf sll slr sls slt sr- sra src srf srl srr srs srt ss- ssa ssc ssf ssl ssr sss sst sta stc stf stl str sts stt taa tac taf tal tar tas tat tca tcc tcf tcl tcr tcs tct tfa tfc tff tfl tfr tfs tft tla tlc tlf tll tlr tls tlt tra trc trf trl trr trs trt tsa tsc tsf tsl tsr tss tst tta ttc ttf ttl ttr tts ttt