-ey a-a a-b a-i aaa aab aae aai aak aap aay ab- aba abb abe abi abk abp aby aea aeb aee aei aek aep aey ai- aia aib aie aii aik aip aiy aka akb ake aki akk akp ap- apa apb ape api apk app apy ay- aya aye ayi ayk ayp b-p baa bab bae bai bak bap bay bba bbb bbe bbi bbk bbp bby be- bea beb bee bei bek bep bey bi- bia bib bie bii bik bip biy bka bkb bke bkk bkp bpa bpb bpe bpi bpp bpy by- bya bye byi byk byp eaa eab eae eai eak eap eba ebb ebe ebi ebk ebp eby eea eeb eee eek eep eey eia eib eie eii eik eip eka ekb eke eki ekp eky ep- epa epb epe epi epp eya eye eyp ia- iaa iab iae iai iap iba ibb ibe ibi ibk ibp iby ie- iea iee iei iek iep iey iia iib iie iii iip ika ikb ike iki ikk ipa ipb ipe ipi ipp ipy iya iye iyy ka- kaa kab kae kai kak kap kay kba kbb kbe kbi kbk kbp ke- kea keb kee kei kek kep key kia kib kie kii kik kip kkb kke kki kkk kkp kky kpa kpe kpi kpk kpp kya kye kyp p-p paa pab pae pai pak pap pay pba pbb pbe pbi pbk pbp pby pea peb pee pei pek pep pey pia pib pie pii pik pip pka pkb pke pki pkp pky ppa ppb ppe ppi ppk ppp py- pya pyb pye pyk yaa yab yae yai yak yap yay ybe ybi ybp yby yea yeb yee yei yek yep yey yie yii yip yka yki ykk ypa yyb yye yyy