-al -ol a-a a-c aaa aac aad aaf aal aao aar aas ac- aca acc acd acf acl aco acr acs ad- ada adc add adf adl ado adr ads af- afa afc afd aff afl afo afr afs al- ala alc ald alf all alo alr als aoa aoc aod aof aol aoo aor aos ar- ara arc ard arf arl aro arr ars as- asa asc asd asf asl aso asr ass c-- caa cac cad caf cal cao car cas cca ccc ccd ccf ccl cco ccr ccs cda cdc cdd cdf cdl cdo cdr cds cfa cfc cfd cff cfl cfo cfr cfs cl- cla clc cld clf cll clo clr cls co- coa coc cod cof col coo cor cos cra crc crd crf crl cro crr crs csa csc csd csf csl cso csr css daa dac dad daf dal dao dar das dca dcc dcd dcf dcl dco dcr dcs dda ddc ddd ddf ddl ddo ddr dds dfa dfc dfd dff dfl dfo dfr dfs dl- dla dlc dld dlf dll dlo dlr dls doa doc dod dof dol doo dor dos dra drc drd drl dro drr drs dsa dsc dsd dsf dsl dso dsr dss faa fac fad faf fal fao far fas fca fcc fcd fcf fcl fco fcr fcs fda fdc fdd fdf fdl fdo fdr fds ffa ffc ffd fff ffl ffo ffr ffs fla flc fld flf fll flo flr fls foa foc fof fol foo for fos fra frc frd frf frl fro frr frs fsa fsc fsd fsf fsl fso fsr fss la- laa lac lad laf lal lao lar las lca lcc lcd lcf lcl lco lcr lcs lda ldc ldd ldf ldl ldo ldr lds lfa lfc lfd lff lfl lfo lfr lfs lla llc lld llf lll llo llr lls loa loc lod lof lol loo lor los lra lrc lrd lrf lro lrr lrs lsa lsc lsd lsf lsl lso lsr lss oaa oac oad oaf oal oao oar oas oc- oca occ ocd ocf ocl oco ocr ocs oda odc odd odf odl odo odr ods of- ofa ofc ofd off ofl ofo ofr ofs ola olc old olf oll olo ols oo- ooa ooc ood oof ool ooo oor oos or- ora orc ord orf orl oro orr ors os- osa osc osd osf osl oso osr oss ra- raa rac rad raf ral rao rar ras rca rcc rcd rcf rcl rco rcr rcs rda rdc rdd rdf rdl rdo rdr rds rfa rfc rfd rff rfl rfo rfr rfs rla rlc rld rlf rll rlo rlr rls roa roc rod rof rol roo ror ros rra rrc rrd rrf rrl rrr rrs rsa rsc rsd rsf rsl rso rsr rss saa sac sad saf sal sao sar sas sca scc scd scf scl sco scr scs sda sdc sdd sdf sdl sdo sdr sds sfa sfc sfd sff sfl sfo sfr sfs sla slc sld slf sll slo slr sls soa soc sod sof sol soo sor sos sr- sra src srd srf srl sro srr srs ss- ssa ssc ssd ssf ssl sso ssr sss