a-a a-b a-i aaa aab aai aak aan aao aav aay ab- aba abb abi abk abn abo abv aby ai- aia aib aii aik ain aio aiv aiy aka akb aki akk akn ako akv an- ana anb ani ank ann ano anv any aoa aob aoi aok aon aoo aov av- ava avb avi avk avn avo avy ay- aya ayi ayk ayn ayo baa bab bai bak ban bao bav bay bba bbb bbi bbk bbn bbo bby bi- bia bib bii bik bin bio biv biy bka bkb bkk bkn bko bkv bna bnb bni bnk bnn bno bnv boa bob boi bok bon boo bov boy bva bvb bvi bvk bvn bvo bvv by- bya byi byk byn byo i-v ia- iaa iab iai ian iao iav iba ibb ibi ibk ibn ibo ibv iby iia iib iii iin iio ika ikb iki ikk iko ikv in- ina inb ini ink inn ino inv iny io- ioa iob ioi ion ioo iov iva ivb ivi ivo ivv ivy iya iyo iyy ka- kaa kab kai kak kan kao kav kay kba kbb kbi kbk kbn kbo kia kib kii kik kin kio kiv kkb kki kkk kkn kkv kky kn- kna kni knk knn kno koa kob koi kok kon koo koy kva kvb kvi kvk kvn kvo kvv kya kyn kyo n-i naa nab nai nak nan nao nav nay nba nbb nbi nbk nbn nbo nbv nia nib nii nik nin nio niv nka nki nkk nkn nko nky nna nnb nni nnk nnn nno nnv no- noa nob noi nok non noo nov noy nva nvb nvi nvk nvn nvv nya nyk nyn nyo nyy o-i oaa oab oai oak oan oao oav ob- oba obb obi obk obn obo obv oby oia oib oii oik oin oio oiv oka okb oki okk oko on- ona onb oni onk onn ono ony oo- ooa oob ooi ook oon ooo oov ov- ova ovb ovi ovo ovv oya oyi oyo v-a vaa vab vai vak van vao vav vay vba vbi vbk vbo vbv vi- via vib vii vik vin vio viv viy vka vkb vn- vna vni vno vnv voa vob voi vok von voo vov voy vva vvb vvi vvo vvv vyn yaa yab yai yak yan yao yav yay ybi yby yii yin yio yka yki ykk ykn yna ynk ynn yny yob yoi yok yon yoo yoy yva yvi yvo yvy yyb yyy