-al -er a-a a-c aaa aac aae aaf aag aal aar aau ac- aca acc ace acf acg acl acr acu aea aec aee aef aeg ael aer aeu af- afa afc afe aff afg afl afr afu ag- aga agc age agf agg agl agr agu al- ala alc ale alf alg all alr alu ar- ara arc are arf arg arl arr aru au- aua auc aue auf aug aul aur c-- caa cac cae caf cag cal car cau cca ccc cce ccf ccg ccl ccr ccu ce- cea cec cee cef ceg cel cer ceu cfa cfc cfe cff cfg cfl cfr cfu cga cgc cge cgg cgl cgr cgu cl- cla clc cle clf clg cll clr clu cra crc cre crf crg crl crr cru cua cuc cue cuf cug cul cur cuu eaa eac eae eaf eag eal ear eau ec- eca ecc ece ecf ecg ecl ecr ecu eea eec eee eef eeg eel eer ef- efa efc efe eff efg efl efr ega egc ege egf egg egl egr egu ela elc ele elf elg ell elr elu era erc ere erf erg erl err eru eu- eua euc eue euf eug eul eur faa fac fae faf fag fal far fau fca fcc fce fcf fcg fcl fcr fcu fea fec fee fef feg fel fer feu ffa ffc ffe fff ffg ffl ffr ffu fga fgc fge fgf fgg fgl fgr fla flc fle flf flg fll flr flu fra frc fre frf frg frl frr fru fua fue fuf fug ful fur fuu gaa gac gae gaf gag gal gar gau gca gcc gce gcf gcg gcl gcr gcu ge- gea gec gee gef geg gel ger geu gfa gfc gfe gff gfl gfr gga ggc ggg ggr ggu gla glc gle glf glg gll glr glu gra grc gre grf grg grl grr gru gu- gua guc gue guf gug gul gur guu la- laa lac lae laf lag lal lar lau lca lcc lce lcf lcg lcl lcr lcu lea lec lee lef leg lel ler leu lfa lfc lfe lff lfg lfl lfr lfu lga lgc lge lgf lgg lgl lgr lgu lla llc lle llf llg lll llr llu lra lrc lrf lrg lrr lru lua luc lue luf lug lul lur luu ra- raa rac rae raf rag ral rar rau rca rcc rce rcf rcg rcl rcr rcu re- rea rec ree ref reg rel rer reu rfa rfc rfe rff rfg rfl rfr rfu rga rgc rge rgf rgg rgr rla rlc rle rlf rlg rll rlr rlu rra rrc rrf rrg rrl rrr rru rua ruc rue ruf rug rur ruu ua- uaa uac uae uaf uag ual uar uau uca ucc uce ucf ucg ucl ucr ucu uea uec uee uef ueg uel uer ufa ufc ufe uff ufg ufl ufr ufu uga ugc uge ugf ugg ugl ugr ugu ula ulc ule ulf ulg ull ulr ulu ur- ura urc ure urf urg url urr uru uua uuc uue uug uur uuu