-ey -ic bbb bbc bbe bbi bbo bby bcb bcc bce bci bco bcy be- beb bec bee bei beo bey bi- bib bic bie bii bio biy bob boc boe boi boo boy by- byc bye byi byo c-- cbb cbc cbe cbi cbo cby ccb ccc cce cci cco ce- ceb cec cee cei ceo cey ci- cib cic cie cii cio co- cob coc coe coi coo coy cyb cyc cye cyo ebb ebc ebe ebi ebo eby ec- ecb ecc ece eci eco eeb eec eee eeo eey eib eic eie eii eio eo- eob eoc eoe eoi eoo eyc eye eyo ibb ibc ibe ibi ibo iby icb icc ice ici ico icy ie- iec iee iei iey iib iic iie iii iio io- iob ioc ioe ioi ioo iyc iye iyo iyy o-i ob- obb obc obe obi obo oby oc- ocb occ oci oco oeb oec oee oei oeo oey oib oic oie oii oio oo- oob ooc ooi ooo oye oyi oyo ybc ybe ybi yby ycc yce yci yco ycy yeb yec yee yei yeo yey yie yii yio yob yoc yoe yoi yoo yoy yyb yyc yye yyy