-ic a-a a-b a-c a-i aaa aab aac aad aai aao aav ab- aba abb abc abd abi abo abv ac- aca acb acc acd aci aco acv ad- ada adb adc add adi ado adv ai- aia aib aic aid aii aio aiv aoa aob aoc aod aoi aoo aov av- ava avb avc avd avi avo baa bab bac bad bai bao bav bba bbb bbc bbd bbi bbo bca bcb bcc bcd bci bco bcv bda bdb bdc bdd bdi bdo bdv bi- bia bib bic bid bii bio biv boa bob boc bod boi boo bov bva bvb bvc bvd bvi bvo bvv c-- caa cab cac cad cai cao cav cba cbb cbc cbd cbi cbo cbv cca ccb ccc ccd cci cco ccv cda cdb cdc cdd cdi cdo cdv ci- cia cib cic cid cii cio civ co- coa cob coc cod coi coo cov cva cvb cvc cvd cvi cvo cvv daa dab dac dad dai dao dav dba dbb dbc dbd dbi dbo dbv dca dcb dcc dcd dci dco dcv dda ddb ddc ddd ddi ddo di- dia dib dic did dii dio div doa dob doc dod doi doo dov dva dvb dvc dvd dvi i-d i-v ia- iaa iab iac iad iai iao iav iba ibb ibc ibd ibi ibo ibv ica icb icc icd ici ico icv ida idb idc idd idi ido idv iia iib iic iid iii iio io- ioa iob ioc iod ioi ioo iov iva ivb ivc ivd ivi ivo ivv o-i oaa oab oac oad oai oao oav ob- oba obb obc obd obi obo obv oc- oca ocb occ ocd oci oco ocv oda odb odc odd odi odo odv oia oib oic oid oii oio oiv oo- ooa oob ooc ood ooi ooo oov ov- ova ovb ovc ovd ovi ovo ovv v-a vaa vab vac vad vai vao vav vba vbc vbd vbi vbo vbv vca vcc vcd vci vco vdb vdc vdd vdi vdo vdv vi- via vib vic vid vii vio viv voa vob voc vod voi voo vov vva vvb vvc vvi vvo vvv