bbb bbe bbh bbn bbo bbs be- beb bee beh ben beo bes bhb bhe bhh bho bhs bnb bne bnn bno bns bob boe boh bon boo bos bsb bse bsh bsn bso bss ebb ebe ebh ebn ebo ebs eeb eee een eeo ees ehb ehe ehh ehn eho ehs en- enb ene enh enn eno ens eo- eob eoe eoh eon eoo eos es- esb ese esh esn eso ess hbb hbe hbh hbn hbo hbs he- heb hee heh hen heo hes hhb hhe hhh hhn hho hhs hnb hne hnh hnn hno hns hob hoe hoh hon hoo hos hsb hse hsh hsn hss nbb nbe nbn nbo nbs ne- neb nee neh nen neo nes nhb nhe nhh nhn nhs nnb nne nnh nnn nno nns no- nob noe noh non noo nos nsb nse nsh nsn nso nss ob- obb obe obh obn obo obs oeb oee oeh oen oeo oes ohe ohh ohn oho ohs on- onb one onh onn ono ons oo- oob ooh oon ooo oos os- osb ose osh osn oso oss sbb sbe sbh sbn sbo sbs se- seb see seh sen seo ses sh- shb she shh shn sho shs snb sne snn sno sns sob soe soh son soo sos ss- ssb sse ssh ssn sso sss