-ic a-a a-b a-c a-i aaa aab aac aag aai aao aav ab- aba abb abc abg abi abo abv ac- aca acb acc acg aci aco acv ag- aga agb agc agg agi ago agv ai- aia aib aic aig aii aio aiv aoa aob aoc aog aoi aoo aov av- ava avb avc avg avi avo baa bab bac bag bai bao bav bba bbb bbc bbg bbi bbo bca bcb bcc bcg bci bco bcv bga bgb bgc bgg bgi bgo bgv bi- bia bib bic big bii bio biv boa bob boc bog boi boo bov bva bvb bvc bvg bvi bvo bvv c-- caa cab cac cag cai cao cav cba cbb cbc cbg cbi cbo cbv cca ccb ccc ccg cci cco ccv cga cgb cgc cgg cgi cgo cgv ci- cia cib cic cig cii cio civ co- coa cob coc cog coi coo cov cva cvb cvc cvg cvi cvo cvv gaa gab gac gag gai gao gav gba gbc gbg gbi gbo gbv gca gcb gcc gcg gci gco gga ggb ggc ggg ggi ggo ggv gia gib gic gig gii gio giv goa gob goc gog goi goo gov gva gvb gvc gvg gvi gvo i-v ia- iaa iab iac iag iai iao iav iba ibb ibc ibg ibi ibo ibv ica icb icc icg ici ico icv iga igb igc igg igi igo iia iib iic iii iio io- ioa iob ioc iog ioi ioo iov iva ivb ivc ivg ivi ivo ivv o-i oaa oab oac oag oai oao oav ob- oba obb obc obg obi obo obv oc- oca ocb occ ocg oci oco ocv oga ogc ogg ogi ogo oia oib oic oii oio oiv oo- ooa oob ooc oog ooi ooo oov ov- ova ovb ovc ovi ovo ovv v-a vaa vab vac vag vai vao vav vba vbc vbg vbi vbo vbv vca vcc vci vco vga vgc vgg vgo vi- via vib vic vig vii vio viv voa vob voc vog voi voo vov vva vvb vvc vvg vvi vvo vvv