-er -th a-a a-c a-t aaa aac aae aah aak aar aat aau ac- aca acc ace ach ack acr act acu aea aec aee aeh aek aer aet aeu aha ahc ahe ahh ahk ahr aht ahu aka akc ake akh akk akr aku ar- ara arc are arh ark arr art aru at- ata atc ate ath atr att atu au- aua auc aue auh auk aur aut c-- caa cac cae cah cak car cat cau cca ccc cce cch cck ccr cct ccu ce- cea cec cee ceh cek cer cet ceu ch- cha chc che chh chk chr cht chu cka ckc ckh ckt cra crc cre crh crk crr crt cru cta ctc cte cth ctk ctr ctt ctu cua cuc cue cuh cuk cur cut cuu eaa eac eae eah eak ear eat eau ec- eca ecc ece ech eck ecr ect ecu eea eec eee eek eer eet eha ehc ehe ehh ehr eht ehu eka ekc eke ekh ekr ekt eku era erc ere erh erk err ert eru eta etc ete eth etk etr ett etu eu- eua euc eue eur eut haa hac hae hah hak har hat hau hca hcc hce hch hck hcr hct he- hea hec hee heh hek her het heu hha hhc hhe hhh hhk hhr hht hhu hka hkh hkk hkr hkt hku hr- hra hrc hre hrh hrk hrr hrt hru hta htc hte hth htk htr htt hua huc hue huh huk hur hut huu k-t ka- kaa kac kae kah kak kar kat kau kca kcc kce kch kck kcr kct kcu ke- kea kec kee keh kek ker ket kha khe khh khk khr khu kkc kke kkh kkk kkr kkt kku kra krc krk krr krt kru kta ktc kte kth ktk ktr ktt ktu kuc kue kuh kuk kur kut kuu ra- raa rac rae rah rak rar rat rau rca rcc rce rch rcr rct rcu re- rea rec ree reh rek rer ret reu rh- rha rhc rhe rhh rhr rht rhu rkc rke rkk rkt rku rra rrc rrh rrk rrr rrt rru rta rtc rte rtk rtr rtt rtu rua ruc rue ruh ruk rur rut ruu taa tac tae tah tak tar tat tau tca tcc tce tch tck tcr tct tcu te- tea tec tee teh tek ter tet teu th- tha thc the thh thk thr tht thu tka tkc tke tkk tkr tkt tra trc tre trh trk trr trt tru tta ttc tte tth ttk ttr ttt ttu tua tuc tue tuh tuk tur tut tuu ua- uaa uac uae uah uak uar uat uau uca ucc uce uch uck ucr uct ucu uea uec uee ueh uer uet uha uhc uhe uhh uhr uht uhu uka ukc uke ukk ukr uku ur- ura urc ure urk urr urt uru uta utc ute uth utk utr utt utu uua uuc uue uur uut uuu