-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aag aai aak aar aat aau ab- aba abb abc abd abe abg abi abk abr abt abu ac- aca acb acc acd ace acg aci ack acr act acu ad- ada adb adc add ade adg adi adk adr adt adu aea aeb aec aed aee aeg aei aek aer aet aeu ag- aga agb agc agd age agg agi agk agr agt agu ai- aia aib aic aid aie aig aii aik air ait aiu aka akb akc akd ake akg aki akk akr aku ar- ara arb arc ard are arg ari ark arr art aru at- ata atb atc atd ate atg ati atr att atu au- aua aub auc aud aue aug aui auk aur aut b-u baa bab bac bad bae bag bai bak bar bat bau bba bbb bbc bbd bbe bbg bbi bbk bbr bbt bbu bca bcb bcc bcd bce bcg bci bck bcr bct bcu bda bdb bdc bdd bde bdg bdi bdk bdr bdt bdu be- bea beb bec bed bee beg bei bek ber bet beu bga bgb bgc bgd bge bgg bgi bgk bgr bgt bgu bi- bia bib bic bid bie big bii bik bir bit biu bka bkb bkc bke bkg bkk bkr bkt bra brb brd bre brg bri brk brr brt bru bta btb btc btd bte btg bti btk btr btt btu bua bub buc bud bue bug bui buk bur but buu c-- caa cab cac cad cae cag cai cak car cat cau cba cbb cbc cbd cbe cbg cbi cbk cbr cbt cbu cca ccb ccc ccd cce ccg cci cck ccr cct ccu cda cdb cdc cdd cde cdg cdi cdk cdr cdt cdu ce- cea ceb cec ced cee ceg cei cek cer cet ceu cga cgb cgc cgd cge cgg cgi cgr cgt cgu ci- cia cib cic cid cie cig cii cik cir cit ciu cka ckb ckc ckd cki ckt cra crb crc crd cre crg cri crk crr crt cru cta ctb ctc ctd cte ctg cti ctk ctr ctt ctu cua cub cuc cud cue cug cui cuk cur cut cuu daa dab dac dad dae dag dai dak dar dat dau dba dbb dbc dbd dbe dbg dbi dbk dbr dbt dbu dca dcb dcc dcd dce dcg dci dck dcr dct dcu dda ddb ddc ddd dde ddg ddi ddk ddr ddt ddu de- dea deb dec ded dee deg dei dek der det deu dga dgc dgd dge dgg dgi dgk dgr dgt dgu di- dia dib dic did die dig dii dik dir dit diu dka dkb dkc dke dkg dki dkk dkr dkt dku dra drb drc drd dre drg dri drk drr drt dru dta dtb dtc dtd dte dtg dti dtk dtr dtt dtu dua dub duc dud due dug dui duk dur dut eaa eab eac ead eae eag eai eak ear eat eau eba ebb ebc ebd ebe ebg ebi ebk ebr ebt ebu ec- eca ecb ecc ecd ece ecg eci eck ecr ect ecu ed- eda edb edc edd ede edg edi edk edr edt edu eea eeb eec eed eee eeg eek eer eet ega egb egc egd ege egg egi egr egt egu eia eib eic eid eie eig eii eik eir eit eiu eka ekb ekc ekd eke ekg eki ekr ekt eku era erb erc erd ere erg eri erk err ert eru eta etb etc etd ete etg eti etk etr ett etu eu- eua eub euc eud eue eug eui eur eut g-d gaa gab gac gad gae gag gai gak gar gat gau gba gbc gbd gbe gbg gbi gbk gbr gbt gbu gca gcb gcc gcd gce gcg gci gck gcr gct gcu gda gdb gdc gdd gde gdi gdk gdr gdt gdu ge- gea geb gec ged gee geg gei gek ger get geu gga ggb ggc ggd ggg ggi ggr ggt ggu gia gib gic gid gie gig gii gik gir git giu gka gkb gkd gkt gra grb grc grd gre grg gri grk grr grt gru gta gtb gtc gtd gte gtg gti gtk gtr gtt gtu gu- gua gub guc gud gue gug gui guk gur gut guu i-d ia- iaa iab iac iad iae iag iai iar iat iau iba ibb ibc ibd ibe ibg ibi ibk ibr ibt ibu ica icb icc icd ice icg ici ick icr ict icu ida idb idc idd ide idg idi idk idr idt idu ie- iea iec ied iee ieg iei iek ier iet iga igb igc igd ige igg igi igk igr igt igu iia iib iic iid iie iii iir iit iiu ika ikb ikc ike iki ikk ikr ikt iku ir- ira irb irc ird ire irg iri irk irr irt iru ita itb itc itd ite itg iti itk itt itu iu- iua iub iuc iud iue iug iui iur iut k-t ka- kaa kab kac kad kae kag kai kak kar kat kau kba kbb kbc kbd kbe kbi kbk kbr kbu kca kcb kcc kcd kce kcg kci kck kcr kct kcu kda kdb kdc kde kdg kdk kdr kdt kdu ke- kea keb kec ked kee keg kei kek ker ket kga kgb kgc kgd kgi kgu kia kib kic kid kie kig kii kik kir kit kiu kkb kkc kke kki kkk kkr kkt kku kra krc krd krg kri krk krr krt kru kta ktb ktc kte ktg ktk ktr ktt ktu kub kuc kud kue kug kui kuk kur kut kuu ra- raa rab rac rad rae rag rai rak rar rat rau rba rbb rbc rbd rbe rbg rbi rbk rbr rbt rbu rca rcb rcc rcd rce rcg rci rcr rct rcu rda rdb rdc rdd rde rdg rdi rdr rdt rdu re- rea reb rec red ree reg rei rek rer ret reu rga