-er a-a a-c aaa aac aae aag aaj aak aar aau aav ac- aca acc ace acg acj ack acr acu acv aea aec aee aeg aej aek aer aeu aev ag- aga agc age agg agj agk agr agu agv aja ajc aje ajj ajk ajr aju aka akc ake akg akj akk akr aku akv ar- ara arc are arg arj ark arr aru arv au- aua auc aue aug auj auk aur auv av- ava avc ave avg avk avr avu c-- c-j caa cac cae cag caj cak car cau cav cca ccc cce ccg ccj cck ccr ccu ccv ce- cea cec cee ceg cej cek cer ceu cev cga cgc cge cgg cgr cgu cgv cja cjc cjg cjk cjr cka ckc cra crc cre crg crj crk crr cru crv cua cuc cue cug cuk cur cuu cuv cva cvc cve cvg cvk cvr cvu cvv eaa eac eae eag eaj eak ear eau eav ec- eca ecc ece ecg ecj eck ecr ecu ecv eea eec eee eeg eek eer eev ega egc ege egg egr egu eja ejc eju eka ekc eke ekg ekr eku ekv era erc ere erg erk err eru erv eu- eua euc eue eug euj eur euv eva evc eve evg evr evv gaa gac gae gag gaj gak gar gau gav gca gcc gce gcg gck gcr gcu ge- gea gec gee geg gek ger geu gev gga ggc ggg ggj ggr ggu ggv gja gjc gje gjg gjr gka gra grc gre grg grj grk grr gru grv gu- gua guc gue gug guj guk gur guu guv gva gvc gve gvg gvk gvr gvu jaa jac jae jag jaj jak jar jau jav jca jcc jce jck jcr jcu jea jec jee jeg jej jek jer jeu jga jge jgr jgu jja jjc jjg jjj jjk jjr jju jka jkk jkr jku jkv jra jrc jrg jrk jrr jue jug juk jur juv jvc jvg ka- kaa kac kae kag kaj kak kar kau kav kca kcc kce kcg kck kcr kcu ke- kea kec kee keg kek ker kev kga kgc kgu kgv kjc kje kjr kju kkc kke kkk kkr kku kkv kra krc krg krk krr kru krv kuc kue kug kuj kuk kur kuu kva kvk kvr kvv ra- raa rac rae rag raj rak rar rau rav rca rcc rce rcg rcj rcr rcu rcv re- rea rec ree reg rek rer reu rev rga rgc rge rgg rgk rgr rgv rja rjc rjg rjk rjr rkc rke rkg rkk rku rkv rra rrc rrg rrk rrr rru rua ruc rue rug ruk rur ruu ruv rva rvc rve rvg rvr rvu rvv ua- uaa uac uae uag uaj uak uar uau uav uca ucc uce ucg ucj uck ucr ucu ucv uea uec uee ueg uer uga ugc uge ugg ugk ugr ugu ujc uka ukc uke ukk ukr uku ur- ura urc ure urg urk urr uru uua uuc uue uug uur uuu uva uvc uve uvu uvv v-a v-e vaa vac vae vag vaj vak var vau vav vca vcc vce vcr vcu vea vec vee veg vek ver veu vga vgc vgg vgr vgu vja vka vkg vra vrc vre vrg vrk vrr vru vue vug vuk vur vuv vva vvc vvg vvr vvv