-al a-a a-c a-t aaa aac aaf aal aas aat ac- aca acc acf acl acs act af- afa afc aff afl afs aft al- ala alc alf all als alt as- asa asc asf asl ass ast at- ata atc atf atl ats att c-- caa cac caf cal cas cat cca ccc ccf ccl ccs cct cfa cfc cff cfl cfs cft cl- cla clc clf cll cls clt csa csc csf csl css cst cta ctc ctf ctl cts ctt faa fac faf fal fas fat fca fcc fcf fcl fcs fct ffa ffc fff ffl ffs fft fla flc flf fll fls flt fsa fsc fsf fsl fss fst fta ftc ftf ftl fts ftt la- laa lac laf lal las lat lca lcc lcf lcl lcs lct lfa lfc lff lfl lfs lft lla llc llf lll lls llt lsa lsc lsf lsl lss lst lta ltc ltf ltl lts ltt saa sac saf sal sas sat sca scc scf scl scs sct sfa sfc sff sfl sfs sft sla slc slf sll sls slt ss- ssa ssc ssf ssl sss sst sta stc stf stl sts stt taa tac taf tal tas tat tca tcc tcf tcl tcs tct tfa tfc tff tfl tfs tft tla tlc tlf tll tls tlt tsa tsc tsf tsl tss tst tta ttc ttf ttl tts ttt