-ic a-a a-b a-c a-i aaa aab aac aag aai aar aav ab- aba abb abc abg abi abr abv ac- aca acb acc acg aci acr acv ag- aga agb agc agg agi agr agv ai- aia aib aic aig aii air aiv ar- ara arb arc arg ari arr arv av- ava avb avc avg avi avr baa bab bac bag bai bar bav bba bbb bbc bbg bbi bbr bca bcb bcc bcg bci bcr bcv bga bgb bgc bgg bgi bgr bgv bi- bia bib bic big bii bir biv bra brb brg bri brr brv bva bvb bvc bvg bvi bvr bvv c-- caa cab cac cag cai car cav cba cbb cbc cbg cbi cbr cbv cca ccb ccc ccg cci ccr ccv cga cgb cgc cgg cgi cgr cgv ci- cia cib cic cig cii cir civ cra crb crc crg cri crr crv cva cvb cvc cvg cvi cvr cvv gaa gab gac gag gai gar gav gba gbc gbg gbi gbr gbv gca gcb gcc gcg gci gcr gga ggb ggc ggg ggi ggr ggv gia gib gic gig gii gir giv gra grb grc grg gri grr grv gva gvb gvc gvg gvi gvr i-v ia- iaa iab iac iag iai iar iav iba ibb ibc ibg ibi ibr ibv ica icb icc icg ici icr icv iga igb igc igg igi igr iia iib iic iii iir ir- ira irb irc irg iri irr irv iva ivb ivc ivg ivi ivr ivv ra- raa rab rac rag rai rar rav rba rbb rbc rbg rbi rbr rca rcb rcc rcg rci rcr rcv rga rgb rgc rgg rgi rgr rgv ria rib ric rig rii rir riv rra rrb rrc rrg rri rrr rva rvb rvc rvg rvi rvr rvv v-a vaa vab vac vag vai var vav vba vbc vbg vbi vbr vbv vca vcc vci vcr vga vgc vgg vgr vi- via vib vic vig vii vir viv vra vrb vrc vrg vri vrr vva vvb vvc vvg vvi vvr vvv