-er a-a a-t aaa aae aag aak aap aar aat aea aee aeg aek aep aer aet ag- aga age agg agk agp agr agt aka ake akg akk akp akr ap- apa ape apg apk app apr apt ar- ara are arg ark arp arr art at- ata ate atg atp atr att eaa eae eag eak eap ear eat eea eee eeg eek eep eer eet ega ege egg egp egr egt eka eke ekg ekp ekr ekt ep- epa epe epg epp epr ept era ere erg erk erp err ert eta ete etg etk etp etr ett g-p gaa gae gag gak gap gar gat ge- gea gee geg gek gep ger get gga ggg ggp ggr ggt gka gkp gkt gpa gpe gpg gpk gpp gpr gpt gra gre grg grk grp grr grt gta gte gtg gtk gtp gtr gtt k-t ka- kaa kae kag kak kap kar kat ke- kea kee keg kek kep ker ket kga kgp kke kkk kkp kkr kkt kpa kpe kpk kpp kpr kpt kra krg krk krp krr krt kta kte ktg ktk ktp ktr ktt p-p paa pae pag pak pap par pat pea pee peg pek pep per pet pga pge pgg pgk pgp pgr pgt pka pke pkg pkp pkr pkt ppa ppe ppg ppk ppp ppr ppt pra pre prg prk prp prr prt pt- pta pte ptg ptk ptp ptr ptt ra- raa rae rag rak rap rar rat re- rea ree reg rek rep rer ret rga rge rgg rgk rgp rgr rgt rke rkg rkk rkp rkt rpa rpe rpg rpk rpp rpr rpt rra rrg rrk rrp rrr rrt rta rte rtg rtk rtp rtr rtt taa tae tag tak tap tar tat te- tea tee teg tek tep ter tet tga tge tgg tgk tgp tgr tgt tka tke tkg tkk tkp tkr tkt tpa tpe tpg tpk tpp tpr tpt tra tre trg trk trp trr trt tta tte ttg ttk ttp ttr ttt