a-a a-b a-i aaa aab aad aai aak aar aav ab- aba abb abd abi abk abr abv ad- ada adb add adi adk adr adv ai- aia aib aid aii aik air aiv aka akb akd aki akk akr akv ar- ara arb ard ari ark arr arv av- ava avb avd avi avk avr baa bab bad bai bak bar bav bba bbb bbd bbi bbk bbr bda bdb bdd bdi bdk bdr bdv bi- bia bib bid bii bik bir biv bka bkb bkk bkr bkv bra brb brd bri brk brr brv bva bvb bvd bvi bvk bvr bvv daa dab dad dai dak dar dav dba dbb dbd dbi dbk dbr dbv dda ddb ddd ddi ddk ddr di- dia dib did dii dik dir div dka dkb dki dkk dkr dra drb drd dri drk drr drv dva dvb dvd dvi dvk dvr i-d i-v ia- iaa iab iad iai iar iav iba ibb ibd ibi ibk ibr ibv ida idb idd idi idk idr idv iia iib iid iii iir ika ikb iki ikk ikr ikv ir- ira irb ird iri irk irr irv iva ivb ivd ivi ivr ivv ka- kaa kab kad kai kak kar kav kba kbb kbd kbi kbk kbr kda kdb kdk kdr kia kib kid kii kik kir kiv kkb kki kkk kkr kkv kra krd kri krk krr krv kva kvb kvi kvk kvr kvv ra- raa rab rad rai rak rar rav rba rbb rbd rbi rbk rbr rda rdb rdd rdi rdr rdv ria rib rid rii rik rir riv rkb rkk rkv rra rrb rrd rri rrk rrr rva rvb rvd rvi rvr rvv v-a vaa vab vad vai vak var vav vba vbd vbi vbk vbr vbv vdb vdd vdi vdk vdr vdv vi- via vib vid vii vik vir viv vka vkb vra vrb vrd vri vrk vrr vva vvb vvi vvr vvv