bbb bbe bbh bbk bbn bbo be- beb bee beh bek ben beo bhb bhe bhh bhk bho bkb bke bkk bkn bko bnb bne bnk bnn bno bob boe boh bok bon boo ebb ebe ebh ebk ebn ebo eeb eee eek een eeo ehb ehe ehh ehn eho ekb eke ekh eko en- enb ene enh enk enn eno eo- eob eoe eoh eok eon eoo hbb hbe hbh hbk hbn hbo he- heb hee heh hek hen heo hhb hhe hhh hhk hhn hho hkb hkh hkk hkn hko hnb hne hnh hnk hnn hno hob hoe hoh hok hon hoo kbb kbe kbh kbk kbn kbo ke- keb kee keh kek ken keo khe khh khk khn kho kkb kke kkh kkk kkn kn- kne knk knn kno kob koe koh kok kon koo nbb nbe nbk nbn nbo ne- neb nee neh nek nen neo nhb nhe nhh nhk nhn nke nkk nkn nko nnb nne nnh nnk nnn nno no- nob noe noh nok non noo ob- obb obe obh obk obn obo oeb oee oeh oen oeo ohe ohh ohn oho okb oke okk oko on- onb one onh onk onn ono oo- oob ooh ook oon ooo