-ol bbb bbc bbe bbh bbl bbo bbw bcb bcc bce bch bcl bco be- beb bec bee beh bel beo bew bhb bhc bhe bhh bhl bho bhw blb blc ble blh bll blo bob boc boe boh bol boo bow bwb bwc bwh bwl bwo c-- cbb cbc cbe cbh cbl cbo cbw ccb ccc cce cch ccl cco ccw ce- ceb cec cee ceh cel ceo cew ch- chb chc che chh chl cho chw cl- clb clc cle clh cll clo clw co- cob coc coe coh col coo cow cw- cwb cwc cwe cwh cwl cwo ebb ebc ebe ebh ebl ebo ebw ec- ecb ecc ece ech ecl eco ecw eeb eec eee eel eeo eew ehb ehc ehe ehh ehl eho elb elc ele elh ell elo elw eo- eob eoc eoe eoh eol eoo eow ewb ewc ewe ewl ewo eww hbb hbc hbe hbh hbl hbo hbw hcb hcc hce hch hcl hco hcw he- heb hec hee heh hel heo hew hhb hhc hhe hhh hhl hho hhw hlb hlc hle hlh hll hlo hlw hob hoc hoe hoh hol hoo how hw- hwb hwe hwl hwo hww lbb lbc lbe lbh lbl lbo lbw lcb lcc lce lch lcl lco lcw leb lec lee leh lel leo lew lhb lhc lhh lho llb llc lle lll llo llw lob loc loe loh lol loo low lwb lwc lwh lwl lwo lww ob- obb obc obe obh obl obo obw oc- ocb occ och ocl oco ocw oeb oec oee oeh oel oeo ohc ohe ohh ohl oho olb olc ole oll olo olw oo- oob ooc ooh ool ooo oow owb owc owe owh owl owo oww wbb wbc wbe wbo wbw wcb wcc wce wch wcl wco wcw web wec wee weh wel weo wew wh- whb whc whh whl who whw wl- wlb wlc wle wll wlo wlw wob woc woe woh wol woo wow wwc wwe wwl wwo www