-er -up b-p b-u bbb bbe bbn bbo bbp bbr bbu be- beb bee ben beo bep ber beu bjj bjn bjp bjr bju bnb bne bnj bnn bno bnp bnr bnu bob boe boj bon boo bop bor bou bpb bpe bpn bpo bpp bpr bpu brb bre brj brn bro brp brr bru bub bue buj bun buo bup bur buu ebb ebe ebj ebn ebo ebp ebr ebu eeb eee een eeo eep eer ejo ejp eju en- enb ene enn eno enp enr enu eo- eob eoe eon eoo eop eor eou ep- epb epe epn epo epp epr epu erb ere ern ero erp err eru eu- eub eue euj eun eup eur jbj jbo jbr jbu jeb jee jej jen jeo jep jer jeu jjb jjj jjp jjr jju jne jnj jnn jno jnp jnr jnu job joe joj jon joo jop jor jou jpb jpe jpj jpn jpo jpp jpr jrb jrn jro jrp jrr jub jue jun juo jup jur nbb nbe nbn nbo nbp nbr nbu ne- neb nee nej nen neo nep ner neu nje njn njp nju nnb nne nnn nno nnp nnu no- nob noe noj non noo nop nor nou npb npe npn npo npp npr npu nrb nre nrj nrn nro nrp nrr nru nub nue nuj nun nuo nup nur nuu ob- obb obe obj obn obo obp obr obu oeb oee oen oeo oep oer ojb oje ojo oju on- onb one onj onn ono onp onr onu oo- oob oon ooo oop oor op- opb ope opj opn opo opp opr or- orb ore orn oro orp orr oru ou- oue oun ouo oup our p-p pbb pbe pbj pbn pbo pbp pbr pbu peb pee pen peo pep per peu pjo pjp pn- pnb pne pnn pno pnp pnr pnu pob poe pon poo pop por pou ppb ppe ppj ppn ppo ppp ppr ppu prb pre prn pro prp prr pru pub pue puj pun pup pur puu rbb rbe rbn rbo rbp rbr rbu re- reb ree ren reo rep rer reu rjp rjr rnb rnn rno rnp rnr rnu rob roe roj ron roo rop ror rou rpb rpe rpn rpo rpp rpr rpu rrb rrn rrp rrr rru rub rue run ruo rup rur ruu ubb ube ubn ubo ubp ubr ubu ueb uee uen uep uer ujo un- unb une unn uno unp unr unu uob uoe uoj uon uoo uop uor up- upb upe upj upn upo upp upr upu ur- urb ure urn uro urp urr uru uue uun uur uuu