-ic a-a a-b a-c a-i aaa aab aac aai aao aau aav ab- aba abb abc abi abo abu abv ac- aca acb acc aci aco acu acv ai- aia aib aic aii aio aiu aiv aoa aob aoc aoi aoo aou aov au- aua aub auc aui auo auv av- ava avb avc avi avo avu b-u baa bab bac bai bao bau bav bba bbb bbc bbi bbo bbu bca bcb bcc bci bco bcu bcv bi- bia bib bic bii bio biu biv boa bob boc boi boo bou bov bua bub buc bui buo buu bva bvb bvc bvi bvo bvu bvv c-- caa cab cac cai cao cau cav cba cbb cbc cbi cbo cbu cbv cca ccb ccc cci cco ccu ccv ci- cia cib cic cii cio ciu civ co- coa cob coc coi coo cou cov cua cub cuc cui cuo cuu cuv cva cvb cvc cvi cvo cvu cvv i-v ia- iaa iab iac iai iao iau iav iba ibb ibc ibi ibo ibu ibv ica icb icc ici ico icu icv iia iib iic iii iio iiu io- ioa iob ioc ioi ioo iou iov iu- iua iub iuc iui iva ivb ivc ivi ivo ivu ivv o-i oaa oab oac oai oao oau oav ob- oba obb obc obi obo obu obv oc- oca ocb occ oci oco ocu ocv oia oib oic oii oio oiu oiv oo- ooa oob ooc ooi ooo oov ou- oua ouc oui ouo ov- ova ovb ovc ovi ovo ovv ua- uaa uab uac uai uao uau uav uba ubb ubc ubi ubo ubu ubv uca ucb ucc uci uco ucu ucv uia uib uic uii uio uiu uoa uob uoc uoo uua uuc uuu uva uvb uvc uvo uvu uvv v-a vaa vab vac vai vao vau vav vba vbc vbi vbo vbv vca vcc vci vco vcu vi- via vib vic vii vio viu viv voa vob voc voi voo vou vov vuv vva vvb vvc vvi vvo vvv