-ic a-a a-b a-c a-i aaa aab aac aai aan aao aav ab- aba abb abc abi abn abo abv ac- aca acb acc aci acn aco acv ai- aia aib aic aii ain aio aiv an- ana anb anc ani ann ano anv aoa aob aoc aoi aon aoo aov av- ava avb avc avi avn avo baa bab bac bai ban bao bav bba bbb bbc bbi bbn bbo bca bcb bcc bci bcn bco bcv bi- bia bib bic bii bin bio biv bna bnb bnc bni bnn bno bnv boa bob boc boi bon boo bov bva bvb bvc bvi bvn bvo bvv c-- caa cab cac cai can cao cav cba cbb cbc cbi cbn cbo cbv cca ccb ccc cci ccn cco ccv ci- cia cib cic cii cin cio civ cn- cna cnb cnc cni cnn cno cnv co- coa cob coc coi con coo cov cva cvb cvc cvi cvn cvo cvv i-v ia- iaa iab iac iai ian iao iav iba ibb ibc ibi ibn ibo ibv ica icb icc ici icn ico icv iia iib iic iii iin iio in- ina inb inc ini inn ino inv io- ioa iob ioc ioi ion ioo iov iva ivb ivc ivi ivo ivv n-i naa nab nac nai nan nao nav nba nbb nbc nbi nbn nbo nbv nca ncb ncc nci ncn nco ncv nia nib nic nii nin nio niv nna nnb nnc nni nnn nno nnv no- noa nob noc noi non noo nov nva nvb nvc nvi nvn nvv o-i oaa oab oac oai oan oao oav ob- oba obb obc obi obn obo obv oc- oca ocb occ oci ocn oco ocv oia oib oic oii oin oio oiv on- ona onb onc oni onn ono oo- ooa oob ooc ooi oon ooo oov ov- ova ovb ovc ovi ovo ovv v-a vaa vab vac vai van vao vav vba vbc vbi vbo vbv vca vcc vci vcn vco vi- via vib vic vii vin vio viv vn- vna vni vno vnv voa vob voc voi von voo vov vva vvb vvc vvi vvo vvv