a-a a-b aaa aab aad aag aan aao aav ab- aba abb abd abg abn abo abv ad- ada adb add adg adn ado adv ag- aga agb agd agg agn ago agv an- ana anb and ang ann ano anv aoa aob aod aog aon aoo aov av- ava avb avd avg avn avo baa bab bad bag ban bao bav bba bbb bbd bbg bbn bbo bda bdb bdd bdg bdo bdv bga bgb bgd bgg bgn bgo bgv bna bnb bnd bng bnn bno bnv boa bob bod bog bon boo bov bva bvb bvd bvg bvn bvo bvv daa dab dad dag dan dao dav dba dbb dbd dbg dbn dbo dbv dda ddb ddd ddg ddn ddo dga dgd dgg dgn dna dnb dnd dng dnn dno doa dob dod dog don doo dov dva dvb dvd dvg dvn g-d gaa gab gad gag gan gao gav gba gbd gbg gbn gbo gbv gda gdb gdd gdn gdo gdv gga ggb ggd ggg ggn ggo ggv gna gnb gnd gnn gno gnv goa gob god gog gon goo gov gva gvb gvd gvg gvn gvo naa nab nad nag nan nao nav nba nbb nbd nbg nbn nbo nbv nda ndb ndd ndg ndn ndo ndv nga ngb ngd ngg ngn ngo nna nnb nng nnn nno nnv no- noa nob nod nog non noo nov nva nvb nvd nvg nvn nvv oaa oab oad oag oan oao oav ob- oba obb obd obg obn obo obv oda odb odd odg odn odo odv oga ogd ogg ogn ogo on- ona onb ond ong onn ono oo- ooa oob ood oog oon ooo oov ov- ova ovb ovd ovo ovv v-a vaa vab vad vag van vao vav vba vbd vbg vbo vbv vdb vdd vdg vdo vdv vga vgg vgn vgo vn- vna vnd vng vno vnv voa vob vod vog von voo vov vva vvb vvg vvo vvv