-er -ic a-a a-c a-i a-t aaa aac aae aai aar aat aau aax ac- aca acc ace aci acr act acu acx aea aec aee aei aer aet aeu aex ai- aia aic aie aii air ait aiu aix ar- ara arc are ari arr art aru arx at- ata atc ate ati atr att atu atx au- aua auc aue aui aur aut aux ax- axa axe axi axr axt axx c-- caa cac cae cai car cat cau cax cca ccc cce cci ccr cct ccu ccx ce- cea cec cee cei cer cet ceu cex ci- cia cic cie cii cir cit ciu cix cra crc cre cri crr crt cru crx cta ctc cte cti ctr ctt ctu ctx cua cuc cue cui cur cut cuu cxc cxi cxr cxt cxx eaa eac eae eai ear eat eau eax ec- eca ecc ece eci ecr ect ecu ecx eea eec eee eer eet eex eia eic eie eii eir eit eiu eix era erc ere eri err ert eru eta etc ete eti etr ett etu etx eu- eua euc eue eui eur eut eux ex- exa exc exe exi exr ext exu exx ia- iaa iac iae iai iar iat iau ica icc ice ici icr ict icu ie- iea iec iee iei ier iet iex iia iic iie iii iir iit iiu iix ir- ira irc ire iri irr irt iru irx ita itc ite iti itt itu itx iu- iua iuc iue iui iur iut ixc ixe ixi ra- raa rac rae rai rar rat rau rax rca rcc rce rci rcr rct rcu rcx re- rea rec ree rei rer ret reu rex ria ric rie rii rir rit rix rra rrc rri rrr rrt rru rta rtc rte rti rtr rtt rtu rtx rua ruc rue rui rur rut ruu rux rxr t-x taa tac tae tai tar tat tau tax tca tcc tce tci tcr tct tcu tcx te- tea tec tee tei ter tet teu tex tia tic tie tii tir tit tiu tix tra trc tre tri trr trt tru trx tta ttc tte tti ttr ttt ttu ttx tua tuc tue tui tur tut tuu tux txe txi txt txu ua- uaa uac uae uai uar uat uau uca ucc uce uci ucr uct ucu uea uec uee uei uer uet uia uic uie uii uir uit uiu ur- ura urc ure uri urr urt uru urx uta utc ute uti utr utt utu utx uua uuc uue uur uut uuu uxc uxr uxt uxu xaa xac xar xat xau xci xcr xcx xee xer xet xeu xex xia xic xie xii xit xiu xix xrc xrt xrx xtc xti xtr xtx xue xui xxi xxx