-ic bbb bbc bbi bbn bbo bcb bcc bci bcn bco bcv bi- bib bic bii bin bio biv bnb bnc bni bnn bno bnv bob boc boi bon boo bov bvb bvc bvi bvn bvo bvv c-- cbb cbc cbi cbn cbo cbv ccb ccc cci ccn cco ccv ci- cib cic cii cin cio civ cn- cnb cnc cni cnn cno cnv co- cob coc coi con coo cov cvb cvc cvi cvn cvo cvv i-v ibb ibc ibi ibn ibo ibv icb icc ici icn ico icv iib iic iii iin iio in- inb inc ini inn ino inv io- iob ioc ioi ion ioo iov ivb ivc ivi ivo ivv n-i nbb nbc nbi nbn nbo nbv ncb ncc nci ncn nco ncv nib nic nii nin nio niv nnb nnc nni nnn nno nnv no- nob noc noi non noo nov nvb nvc nvi nvn nvv o-i ob- obb obc obi obn obo obv oc- ocb occ oci ocn oco ocv oib oic oii oin oio oiv on- onb onc oni onn ono oo- oob ooc ooi oon ooo oov ov- ovb ovc ovi ovo ovv vbc vbi vbo vbv vcc vci vcn vco vi- vib vic vii vin vio viv vn- vni vno vnv vob voc voi von voo vov vvb vvc vvi vvo vvv