-er -ic a-a a-c a-i a-t aaa aac aad aae aai aak aar aat ac- aca acc acd ace aci ack acr act ad- ada adc add ade adi adk adr adt aea aec aed aee aei aek aer aet ai- aia aic aid aie aii aik air ait aka akc akd ake aki akk akr ar- ara arc ard are ari ark arr art at- ata atc atd ate ati atr att c-- caa cac cad cae cai cak car cat cca ccc ccd cce cci cck ccr cct cda cdc cdd cde cdi cdk cdr cdt ce- cea cec ced cee cei cek cer cet ci- cia cic cid cie cii cik cir cit cka ckc ckd cki ckt cra crc crd cre cri crk crr crt cta ctc ctd cte cti ctk ctr ctt daa dac dad dae dai dak dar dat dca dcc dcd dce dci dck dcr dct dda ddc ddd dde ddi ddk ddr ddt de- dea dec ded dee dei dek der det di- dia dic did die dii dik dir dit dka dkc dke dki dkk dkr dkt dra drc drd dre dri drk drr drt dta dtc dtd dte dti dtk dtr dtt eaa eac ead eae eai eak ear eat ec- eca ecc ecd ece eci eck ecr ect ed- eda edc edd ede edi edk edr edt eea eec eed eee eek eer eet eia eic eid eie eii eik eir eit eka ekc ekd eke eki ekr ekt era erc erd ere eri erk err ert eta etc etd ete eti etk etr ett i-d ia- iaa iac iad iae iai iar iat ica icc icd ice ici ick icr ict ida idc idd ide idi idk idr idt ie- iea iec ied iee iei iek ier iet iia iic iid iie iii iir iit ika ikc ike iki ikk ikr ikt ir- ira irc ird ire iri irk irr irt ita itc itd ite iti itk itt k-t ka- kaa kac kad kae kai kak kar kat kca kcc kcd kce kci kck kcr kct kda kdc kde kdk kdr kdt ke- kea kec ked kee kei kek ker ket kia kic kid kie kii kik kir kit kkc kke kki kkk kkr kkt kra krc krd kri krk krr krt kta ktc kte ktk ktr ktt ra- raa rac rad rae rai rak rar rat rca rcc rcd rce rci rcr rct rda rdc rdd rde rdi rdr rdt re- rea rec red ree rei rek rer ret ria ric rid rie rii rik rir rit rkc rke rkk rkt rra rrc rrd rri rrk rrr rrt rta rtc rtd rte rti rtk rtr rtt taa tac tad tae tai tak tar tat tca tcc tcd tce tci tck tcr tct tda tdc tdd tde tdi tdk tdr tdt te- tea tec ted tee tei tek ter tet tia tic tid tie tii tik tir tit tka tkc tke tkk tkr tkt tra trc trd tre tri trk trr trt tta ttc ttd tte tti ttk ttr ttt