-ic a-a a-b a-c a-i a-t aaa aab aac aai aao aap aar aat aay ab- aba abb abc abi abo abp abr abt aby ac- aca acb acc aci aco acp acr act acy ai- aia aib aic aii aio aip air ait aiy aoa aob aoc aoi aoo aop aor aot ap- apa apb apc api apo app apr apt apy ar- ara arb arc ari aro arp arr art ary at- ata atb atc ati ato atp atr att ay- aya ayc ayi ayo ayp ayr ayt b-p baa bab bac bai bao bap bar bat bay bba bbb bbc bbi bbo bbp bbr bbt bby bca bcb bcc bci bco bcp bcr bct bcy bi- bia bib bic bii bio bip bir bit biy boa bob boc boi boo bop bor bot boy bpa bpb bpc bpi bpo bpp bpr bpt bpy bra brb bri bro brp brr brt bry bta btb btc bti bto btp btr btt bty by- bya byc byi byo byp byr byt c-- caa cab cac cai cao cap car cat cay cba cbb cbc cbi cbo cbp cbr cbt cby cca ccb ccc cci cco ccp ccr cct ci- cia cib cic cii cio cip cir cit co- coa cob coc coi coo cop cor cot coy cpa cpb cpc cpi cpo cpp cpr cpt cra crb crc cri cro crp crr crt cry cta ctb ctc cti cto ctp ctr ctt cty cya cyb cyc cyo cyp cyr cyt ia- iaa iab iac iai iao iap iar iat iba ibb ibc ibi ibo ibp ibr ibt iby ica icb icc ici ico icp icr ict icy iia iib iic iii iio iip iir iit io- ioa iob ioc ioi ioo iop ior iot ipa ipb ipc ipi ipo ipp ipr ipt ipy ir- ira irb irc iri iro irp irr irt iry ita itb itc iti ito itp itt ity iya iyc iyo iyr iyt iyy o-i oaa oab oac oai oao oap oar oat ob- oba obb obc obi obo obp obr obt oby oc- oca ocb occ oci oco ocp ocr oct oia oib oic oii oio oip oir oit oo- ooa oob ooc ooi ooo oop oor oot op- opa opb opc opi opo opp opr opt opy or- ora orb orc ori oro orp orr ort ory ot- ota otb otc oti oto otp otr ott oya oyi oyo p-p paa pab pac pai pao pap par pat pay pba pbb pbc pbi pbo pbp pbr pbt pby pca pcb pcc pci pco pcp pcr pct pia pib pic pii pio pip pir pit poa pob poc poi poo pop por pot poy ppa ppb ppc ppi ppo ppp ppr ppt pra prb prc pri pro prp prr prt pry pt- pta ptb ptc pti pto ptp ptr ptt pty py- pya pyb pyc pyo pyr pyt ra- raa rab rac rai rao rap rar rat ray rba rbb rbc rbi rbo rbp rbr rbt rca rcb rcc rci rco rcp rcr rct ria rib ric rii rio rip rir rit riy roa rob roc roi roo rop ror rot roy rpa rpb rpc rpi rpo rpp rpr rpt rra rrb rrc rri rrp rrr rrt rta rtb rtc rti rto rtp rtr rtt rty ry- rya ryc ryo ryr ryy taa tab tac tai tao tap tar tat tay tba tbb tbc tbi tbo tbp tbr tbt tca tcb tcc tci tco tcp tcr tct tia tib tic tii tio tip tir tit tiy to- toa tob toc toi too top tor tot toy tpa tpb tpc tpi tpo tpp tpr tpt tra trb trc tri tro trp trr trt try tta ttb ttc tti tto ttp ttr ttt tty tya tyc tyo typ tyr tyt yaa yab yac yai yao yap yar yat yay ybc ybi ybp ybr yby yca ycc yci yco ycp ycy yii yio yip yir yit yob yoc yoi yoo yop yor yot yoy ypa ypo yra yrc yro yrp yrt yta ytc yto ytp ytr ytt yyb yyc yyt yyy