-er -ic a-a a-b a-c a-i a-t aaa aab aac aad aae aag aai aak aar aat ab- aba abb abc abd abe abg abi abk abr abt ac- aca acb acc acd ace acg aci ack acr act ad- ada adb adc add ade adg adi adk adr adt aea aeb aec aed aee aeg aei aek aer aet ag- aga agb agc agd age agg agi agk agr agt ai- aia aib aic aid aie aig aii aik air ait aka akb akc akd ake akg aki akk akr ar- ara arb arc ard are arg ari ark arr art at- ata atb atc atd ate atg ati atr att baa bab bac bad bae bag bai bak bar bat bba bbb bbc bbd bbe bbg bbi bbk bbr bbt bca bcb bcc bcd bce bcg bci bck bcr bct bda bdb bdc bdd bde bdg bdi bdk bdr bdt be- bea beb bec bed bee beg bei bek ber bet bga bgb bgc bgd bge bgg bgi bgk bgr bgt bi- bia bib bic bid bie big bii bik bir bit bka bkb bkc bke bkg bkk bkr bkt bra brb brd bre brg bri brk brr brt bta btb btc btd bte btg bti btk btr btt c-- caa cab cac cad cae cag cai cak car cat cba cbb cbc cbd cbe cbg cbi cbk cbr cbt cca ccb ccc ccd cce ccg cci cck ccr cct cda cdb cdc cdd cde cdg cdi cdk cdr cdt ce- cea ceb cec ced cee ceg cei cek cer cet cga cgb cgc cgd cge cgg cgi cgr cgt ci- cia cib cic cid cie cig cii cik cir cit cka ckb ckc ckd cki ckt cra crb crc crd cre crg cri crk crr crt cta ctb ctc ctd cte ctg cti ctk ctr ctt daa dab dac dad dae dag dai dak dar dat dba dbb dbc dbd dbe dbg dbi dbk dbr dbt dca dcb dcc dcd dce dcg dci dck dcr dct dda ddb ddc ddd dde ddg ddi ddk ddr ddt de- dea deb dec ded dee deg dei dek der det dga dgc dgd dge dgg dgi dgk dgr dgt di- dia dib dic did die dig dii dik dir dit dka dkb dkc dke dkg dki dkk dkr dkt dra drb drc drd dre drg dri drk drr drt dta dtb dtc dtd dte dtg dti dtk dtr dtt eaa eab eac ead eae eag eai eak ear eat eba ebb ebc ebd ebe ebg ebi ebk ebr ebt ec- eca ecb ecc ecd ece ecg eci eck ecr ect ed- eda edb edc edd ede edg edi edk edr edt eea eeb eec eed eee eeg eek eer eet ega egb egc egd ege egg egi egr egt eia eib eic eid eie eig eii eik eir eit eka ekb ekc ekd eke ekg eki ekr ekt era erb erc erd ere erg eri erk err ert eta etb etc etd ete etg eti etk etr ett g-d gaa gab gac gad gae gag gai gak gar gat gba gbc gbd gbe gbg gbi gbk gbr gbt gca gcb gcc gcd gce gcg gci gck gcr gct gda gdb gdc gdd gde gdi gdk gdr gdt ge- gea geb gec ged gee geg gei gek ger get gga ggb ggc ggd ggg ggi ggr ggt gia gib gic gid gie gig gii gik gir git gka gkb gkd gkt gra grb grc grd gre grg gri grk grr grt gta gtb gtc gtd gte gtg gti gtk gtr gtt i-d ia- iaa iab iac iad iae iag iai iar iat iba ibb ibc ibd ibe ibg ibi ibk ibr ibt ica icb icc icd ice icg ici ick icr ict ida idb idc idd ide idg idi idk idr idt ie- iea iec ied iee ieg iei iek ier iet iga igb igc igd ige igg igi igk igr igt iia iib iic iid iie iii iir iit ika ikb ikc ike iki ikk ikr ikt ir- ira irb irc ird ire irg iri irk irr irt ita itb itc itd ite itg iti itk itt k-t ka- kaa kab kac kad kae kag kai kak kar kat kba kbb kbc kbd kbe kbi kbk kbr kca kcb kcc kcd kce kcg kci kck kcr kct kda kdb kdc kde kdg kdk kdr kdt ke- kea keb kec ked kee keg kei kek ker ket kga kgb kgc kgd kgi kia kib kic kid kie kig kii kik kir kit kkb kkc kke kki kkk kkr kkt kra krc krd krg kri krk krr krt kta ktb ktc kte ktg ktk ktr ktt ra- raa rab rac rad rae rag rai rak rar rat rba rbb rbc rbd rbe rbg rbi rbk rbr rbt rca rcb rcc rcd rce rcg rci rcr rct rda rdb rdc rdd rde rdg rdi rdr rdt re- rea reb rec red ree reg rei rek rer ret rga rgb rgc rgd rge rgg rgi rgk rgr rgt ria rib ric rid rie rig rii rik rir rit rkb rkc rke rkg rkk rkt rra rrb rrc rrd rrg rri rrk rrr rrt rta rtb rtc rtd rte rtg rti rtk rtr rtt taa tab tac tad tae tag tai tak tar tat tba tbb tbc tbd tbe tbg tbi tbk tbr tbt tca tcb tcc tcd tce tcg tci tck tcr tct tda tdb tdc tdd tde tdg tdi tdk tdr tdt te- tea teb tec ted tee teg tei tek ter tet tga tgb tgc tge tgg tgi tgk tgr tgt tia tib tic tid tie tig tii tik tir tit tka tkb tkc tke tkg tkk tkr tkt tra trb trc trd tre trg tri trk trr trt tta ttb ttc ttd tte ttg tti ttk ttr ttt

a-ak a-be a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aabt aaca aacb aacc aacd aace aaci aack