-er -ic a-a a-c a-i a-t aaa aac aae aai aao aap aar aat ac- aca acc ace aci aco acp acr act aea aec aee aei aeo aep aer aet ai- aia aic aie aii aio aip air ait aoa aoc aoe aoi aoo aop aor aot ap- apa apc ape api apo app apr apt ar- ara arc are ari aro arp arr art at- ata atc ate ati ato atp atr att c-- caa cac cae cai cao cap car cat cca ccc cce cci cco ccp ccr cct ce- cea cec cee cei ceo cep cer cet ci- cia cic cie cii cio cip cir cit co- coa coc coe coi coo cop cor cot cpa cpc cpe cpi cpo cpp cpr cpt cra crc cre cri cro crp crr crt cta ctc cte cti cto ctp ctr ctt eaa eac eae eai eao eap ear eat ec- eca ecc ece eci eco ecr ect eea eec eee eeo eep eer eet eia eic eie eii eio eip eir eit eo- eoa eoc eoe eoi eoo eop eor eot ep- epa epc epe epi epo epp epr ept era erc ere eri ero erp err ert eta etc ete eti eto etp etr ett ia- iaa iac iae iai iao iap iar iat ica icc ice ici ico icp icr ict ie- iea iec iee iei iep ier iet iia iic iie iii iio iip iir iit io- ioa ioc ioe ioi ioo iop ior iot ipa ipc ipe ipi ipo ipp ipr ipt ir- ira irc ire iri iro irp irr irt ita itc ite iti ito itp itt o-i oaa oac oae oai oao oap oar oat oc- oca occ oci oco ocp ocr oct oea oec oee oei oeo oep oer oet oia oic oie oii oio oip oir oit oo- ooa ooc ooi ooo oop oor oot op- opa opc ope opi opo opp opr opt or- ora orc ore ori oro orp orr ort ot- ota otc ote oti oto otp otr ott p-p paa pac pae pai pao pap par pat pca pcc pce pci pco pcp pcr pct pea pec pee pei peo pep per pet pia pic pie pii pio pip pir pit poa poc poe poi poo pop por pot ppa ppc ppe ppi ppo ppp ppr ppt pra prc pre pri pro prp prr prt pt- pta ptc pte pti pto ptp ptr ptt ra- raa rac rae rai rao rap rar rat rca rcc rce rci rco rcp rcr rct re- rea rec ree rei reo rep rer ret ria ric rie rii rio rip rir rit roa roc roe roi roo rop ror rot rpa rpc rpe rpi rpo rpp rpr rpt rra rrc rri rrp rrr rrt rta rtc rte rti rto rtp rtr rtt taa tac tae tai tao tap tar tat tca tcc tce tci tco tcp tcr tct te- tea tec tee tei teo tep ter tet tia tic tie tii tio tip tir tit to- toa toc toe toi too top tor tot tpa tpc tpe tpi tpo tpp tpr tpt tra trc tre tri tro trp trr trt tta ttc tte tti tto ttp ttr ttt