-er -up a-a a-c a-t aaa aac aae aap aar aat aau ac- aca acc ace acp acr act acu aea aec aee aep aer aet aeu ap- apa apc ape app apr apt apu ar- ara arc are arp arr art aru at- ata atc ate atp atr att atu au- aua auc aue aup aur aut c-- caa cac cae cap car cat cau cca ccc cce ccp ccr cct ccu ce- cea cec cee cep cer cet ceu cpa cpc cpe cpp cpr cpt cpu cra crc cre crp crr crt cru cta ctc cte ctp ctr ctt ctu cua cuc cue cup cur cut cuu eaa eac eae eap ear eat eau ec- eca ecc ece ecr ect ecu eea eec eee eep eer eet ep- epa epc epe epp epr ept epu era erc ere erp err ert eru eta etc ete etp etr ett etu eu- eua euc eue eup eur eut p-p paa pac pae pap par pat pau pca pcc pce pcp pcr pct pcu pea pec pee pep per pet peu ppa ppc ppe ppp ppr ppt ppu pra prc pre prp prr prt pru pt- pta ptc pte ptp ptr ptt ptu pua puc pue pup pur put puu ra- raa rac rae rap rar rat rau rca rcc rce rcp rcr rct rcu re- rea rec ree rep rer ret reu rpa rpc rpe rpp rpr rpt rpu rra rrc rrp rrr rrt rru rta rtc rte rtp rtr rtt rtu rua ruc rue rup rur rut ruu taa tac tae tap tar tat tau tca tcc tce tcp tcr tct tcu te- tea tec tee tep ter tet teu tpa tpc tpe tpp tpr tpt tpu tra trc tre trp trr trt tru tta ttc tte ttp ttr ttt ttu tua tuc tue tup tur tut tuu ua- uaa uac uae uap uar uat uau uca ucc uce ucp ucr uct ucu uea uec uee uep uer uet up- upa upc upe upp upr upt upu ur- ura urc ure urp urr urt uru uta utc ute utp utr utt utu uua uuc uue uur uut uuu