-ey -ic bbb bbc bbe bbi bbk bbo bby bcb bcc bce bci bck bco bcv bcy be- beb bec bee bei bek beo bev bey bi- bib bic bie bii bik bio biv biy bkb bkc bke bkk bko bkv bob boc boe boi bok boo bov boy bvb bvc bve bvi bvk bvo bvv by- byc bye byi byk byo c-- cbb cbc cbe cbi cbk cbo cbv cby ccb ccc cce cci cck cco ccv ce- ceb cec cee cei cek ceo cev cey ci- cib cic cie cii cik cio civ ckb ckc cki cko cky co- cob coc coe coi cok coo cov coy cvb cvc cve cvi cvk cvo cvv cyb cyc cye cyk cyo ebb ebc ebe ebi ebk ebo ebv eby ec- ecb ecc ece eci eck eco ecv eeb eec eee eek eeo eev eey eib eic eie eii eik eio eiv ekb ekc eke eki eko ekv eky eo- eob eoc eoe eoi eok eoo evb evc eve evi evo evv evy eyc eye eyo i-v ibb ibc ibe ibi ibk ibo ibv iby icb icc ice ici ick ico icv icy ie- iec iee iei iek iev iey iib iic iie iii iio ikb ikc ike iki ikk iko ikv io- iob ioc ioe ioi ioo iov ivb ivc ive ivi ivo ivv ivy iyc iye iyo iyy kbb kbc kbe kbi kbk kbo kcb kcc kce kci kck ke- keb kec kee kei kek keo kev key kib kic kie kii kik kio kiv kkb kkc kke kki kkk kkv kky kob koc koe koi kok koo koy kvb kvi kvk kvo kvv kyc kye kyo o-i ob- obb obc obe obi obk obo obv oby oc- ocb occ oci ock oco ocv oeb oec oee oei oeo oey oib oic oie oii oik oio oiv okb okc oke oki okk oko oo- oob ooc ooi ook ooo oov ov- ovb ovc ove ovi ovo ovv oye oyi oyo v-e vbc vbi vbk vbo vbv vcc vce vci vco vcy veb vec vee vei vek veo vey vi- vib vic vie vii vik vio viv viy vkb vob voc voe voi vok voo vov voy vvb vvc vvi vvo vvv vye ybc ybe ybi yby ycc yce yci yco ycv ycy yeb yec yee yei yek yeo yev yey yie yii yio yki ykk yob yoc yoe yoi yok yoo yoy yve yvi yvo yvy yyb yyc yye yyy