-er b-p bbb bbe bbg bbh bbn bbo bbp bbr be- beb bee beg beh ben beo bep ber bgb bge bgg bgh bgn bgo bgp bgr bhb bhe bhg bhh bho bhp bhr bnb bne bng bnn bno bnp bnr bob boe bog boh bon boo bop bor bpb bpe bpg bph bpn bpo bpp bpr brb bre brg brh brn bro brp brr ebb ebe ebg ebh ebn ebo ebp ebr eeb eee eeg een eeo eep eer egb ege egg egh egn ego egp egr ehb ehe ehg ehh ehn eho ehp ehr en- enb ene eng enh enn eno enp enr eo- eob eoe eog eoh eon eoo eop eor ep- epb epe epg eph epn epo epp epr erb ere erg erh ern ero erp err g-p gbe gbg gbh gbn gbo gbp gbr ge- geb gee geg geh gen geo gep ger ggb ggg ggh ggn ggo ggp ggr ghb ghe ghg ghh ghn gho ghp ghr gnb gne gnn gno gnp gnr gob goe gog goh gon goo gop gor gpb gpe gpg gph gpn gpo gpp gpr grb gre grg grh grn gro grp grr hbb hbe hbg hbh hbn hbo hbp hbr he- heb hee heg heh hen heo hep her hgb hge hgg hgh hgn hgo hgp hgr hhb hhe hhg hhh hhn hho hhp hhr hnb hne hng hnh hnn hno hob hoe hog hoh hon hoo hop hor hpb hpe hpg hph hpn hpo hpp hpr hr- hrb hre hrg hrh hrn hro hrp hrr nbb nbe nbg nbn nbo nbp nbr ne- neb nee neg neh nen neo nep ner ngb nge ngg ngh ngn ngo ngp nhb nhe nhg nhh nhn nhp nhr nnb nne nng nnh nnn nno nnp no- nob noe nog noh non noo nop nor npb npe npg nph npn npo npp npr nrb nre nrg nrn nro nrp nrr ob- obb obe obg obh obn obo obp obr oeb oee oeg oeh oen oeo oep oer oge ogg ogh ogn ogo ogp ohe ohg ohh ohn oho ohp ohr on- onb one ong onh onn ono onp onr oo- oob oog ooh oon ooo oop oor op- opb ope opg oph opn opo opp opr or- orb ore org orh orn oro orp orr p-p pbb pbe pbg pbn pbo pbp pbr peb pee peg peh pen peo pep per pgb pge pgg pgh pgn pgo pgp pgr phb phe phg phn pho php phr pn- pnb pne png pnh pnn pno pnp pnr pob poe pog poh pon poo pop por ppb ppe ppg pph ppn ppo ppp ppr prb pre prg prh prn pro prp prr rbb rbe rbg rbh rbn rbo rbp rbr re- reb ree reg reh ren reo rep rer rgb rge rgg rgh rgn rgo rgp rgr rh- rhb rhe rhg rhh rhn rho rhp rhr rnb rng rnh rnn rno rnp rnr rob roe rog roh ron roo rop ror rpb rpe rpg rph rpn rpo rpp rpr rrb rrg rrh rrn rrp rrr