-ol bbb bbc bbe bbl bbo bcb bcc bce bcj bcl bco be- beb bec bee bel beo bjc bjj blb blc ble blj bll blo bob boc boe boj bol boo c-- c-j cbb cbc cbe cbj cbl cbo ccb ccc cce ccj ccl cco ce- ceb cec cee cej cel ceo cjb cjc cl- clb clc cle clj cll clo co- cob coc coe coj col coo ebb ebc ebe ebj ebl ebo ec- ecb ecc ece ecj ecl eco eeb eec eee eel eeo ejc ejl ejo elb elc ele ell elo eo- eob eoc eoe eol eoo jbc jbj jbl jbo jcb jcc jce jcl jco jeb jec jee jej jel jeo jjb jjc jjj jjl jlb jlc jle jll jlo job joc joe joj jol joo lbb lbc lbe lbj lbl lbo lcb lcc lce lcj lcl lco leb lec lee lej lel leo lje ljj llb llc lle llj lll llo lob loc loe loj lol loo ob- obb obc obe obj obl obo oc- ocb occ ocj ocl oco oeb oec oee oel oeo ojb ojc oje ojo olb olc ole oll olo oo- oob ooc ool ooo