-al a-a a-c aaa aac aae aaf aag aal aau ac- aca acc ace acf acg acl acu aea aec aee aef aeg ael aeu af- afa afc afe aff afg afl afu ag- aga agc age agf agg agl agu al- ala alc ale alf alg all alu au- aua auc aue auf aug aul c-- caa cac cae caf cag cal cau cca ccc cce ccf ccg ccl ccu ce- cea cec cee cef ceg cel ceu cfa cfc cfe cff cfg cfl cfu cga cgc cge cgg cgl cgu cl- cla clc cle clf clg cll clu cua cuc cue cuf cug cul cuu eaa eac eae eaf eag eal eau ec- eca ecc ece ecf ecg ecl ecu eea eec eee eef eeg eel ef- efa efc efe eff efg efl ega egc ege egf egg egl egu ela elc ele elf elg ell elu eu- eua euc eue euf eug eul faa fac fae faf fag fal fau fca fcc fce fcf fcg fcl fcu fea fec fee fef feg fel feu ffa ffc ffe fff ffg ffl ffu fga fgc fge fgf fgg fgl fla flc fle flf flg fll flu fua fue fuf fug ful fuu gaa gac gae gaf gag gal gau gca gcc gce gcf gcg gcl gcu ge- gea gec gee gef geg gel geu gfa gfc gfe gff gfl gga ggc ggg ggu gla glc gle glf glg gll glu gu- gua guc gue guf gug gul guu la- laa lac lae laf lag lal lau lca lcc lce lcf lcg lcl lcu lea lec lee lef leg lel leu lfa lfc lfe lff lfg lfl lfu lga lgc lge lgf lgg lgl lgu lla llc lle llf llg lll llu lua luc lue luf lug lul luu ua- uaa uac uae uaf uag ual uau uca ucc uce ucf ucg ucl ucu uea uec uee uef ueg uel ufa ufc ufe uff ufg ufl ufu uga ugc uge ugf ugg ugl ugu ula ulc ule ulf ulg ull ulu uua uuc uue uug uuu