-al -ol a-a a-c aaa aac aad aaf aah aal aao ac- aca acc acd acf ach acl aco ad- ada adc add adf adh adl ado af- afa afc afd aff afh afl afo aha ahc ahd ahf ahh ahl aho al- ala alc ald alf alh all alo aoa aoc aod aof aoh aol aoo c-- caa cac cad caf cah cal cao cca ccc ccd ccf cch ccl cco cda cdc cdd cdf cdh cdl cdo cfa cfc cfd cff cfh cfl cfo ch- cha chc chd chf chh chl cho cl- cla clc cld clf clh cll clo co- coa coc cod cof coh col coo daa dac dad daf dah dal dao dca dcc dcd dcf dcl dco dda ddc ddd ddf ddh ddl ddo dfa dfc dfd dff dfh dfl dfo dh- dha dhc dhd dhf dhh dhl dho dl- dla dlc dld dlf dlh dll dlo doa doc dod dof doh dol doo faa fac fad faf fah fal fao fca fcc fcd fcf fcl fco fda fdc fdd fdf fdh fdl fdo ffa ffc ffd fff ffh ffl ffo fha fhc fhf fhh fhl fho fla flc fld flf fll flo foa foc fof foh fol foo haa hac had haf hah hal hao hca hcc hcd hcf hch hcl hco hda hdc hdd hdf hdh hdl hdo hfa hfc hfd hff hfh hfl hfo hha hhc hhd hhf hhh hhl hho hla hlc hld hlf hlh hll hlo hoa hoc hod hof hoh hol hoo la- laa lac lad laf lah lal lao lca lcc lcd lcf lch lcl lco lda ldc ldd ldf ldh ldl ldo lfa lfc lfd lff lfh lfl lfo lha lhc lhd lhf lhh lho lla llc lld llf lll llo loa loc lod lof loh lol loo oaa oac oad oaf oah oal oao oc- oca occ ocd ocf och ocl oco oda odc odd odf odh odl odo of- ofa ofc ofd off ofl ofo oha ohc ohd ohf ohh ohl oho ola olc old olf oll olo oo- ooa ooc ood oof ooh ool ooo