-er -up a-a a-b aaa aab aae aag aan aao aap aar aau ab- aba abb abe abg abn abo abp abr abu aea aeb aee aeg aen aeo aep aer aeu ag- aga agb age agg agn ago agp agr agu an- ana anb ane ang ann ano anp anr anu aoa aob aoe aog aon aoo aop aor aou ap- apa apb ape apg apn apo app apr apu ar- ara arb are arg arn aro arp arr aru au- aua aub aue aug aun auo aup aur b-p b-u baa bab bae bag ban bao bap bar bau bba bbb bbe bbg bbn bbo bbp bbr bbu be- bea beb bee beg ben beo bep ber beu bga bgb bge bgg bgn bgo bgp bgr bgu bna bnb bne bng bnn bno bnp bnr bnu boa bob boe bog bon boo bop bor bou bpa bpb bpe bpg bpn bpo bpp bpr bpu bra brb bre brg brn bro brp brr bru bua bub bue bug bun buo bup bur buu eaa eab eae eag ean eao eap ear eau eba ebb ebe ebg ebn ebo ebp ebr ebu eea eeb eee eeg een eeo eep eer ega egb ege egg egn ego egp egr egu en- ena enb ene eng enn eno enp enr enu eo- eoa eob eoe eog eon eoo eop eor eou ep- epa epb epe epg epn epo epp epr epu era erb ere erg ern ero erp err eru eu- eua eub eue eug eun eup eur g-p gaa gab gae gag gan gao gap gar gau gba gbe gbg gbn gbo gbp gbr gbu ge- gea geb gee geg gen geo gep ger geu gga ggb ggg ggn ggo ggp ggr ggu gna gnb gne gnn gno gnp gnr gnu goa gob goe gog gon goo gop gor gou gpa gpb gpe gpg gpn gpo gpp gpr gpu gra grb gre grg grn gro grp grr gru gu- gua gub gue gug gun guo gup gur guu naa nab nae nag nan nao nap nar nau nba nbb nbe nbg nbn nbo nbp nbr nbu ne- nea neb nee neg nen neo nep ner neu nga ngb nge ngg ngn ngo ngp ngu nna nnb nne nng nnn nno nnp nnu no- noa nob noe nog non noo nop nor nou npa npb npe npg npn npo npp npr npu nra nrb nre nrg nrn nro nrp nrr nru nua nub nue nug nun nuo nup nur nuu oaa oab oae oag oan oao oap oar oau ob- oba obb obe obg obn obo obp obr obu oea oeb oee oeg oen oeo oep oer oga oge ogg ogn ogo ogp on- ona onb one ong onn ono onp onr onu oo- ooa oob oog oon ooo oop oor op- opa opb ope opg opn opo opp opr or- ora orb ore org orn oro orp orr oru ou- oua oue oun ouo oup our p-p paa pab pae pag pan pao pap par pau pba pbb pbe pbg pbn pbo pbp pbr pbu pea peb pee peg pen peo pep per peu pga pgb pge pgg pgn pgo pgp pgr pn- pna pnb pne png pnn pno pnp pnr pnu poa pob poe pog pon poo pop por pou ppa ppb ppe ppg ppn ppo ppp ppr ppu pra prb pre prg prn pro prp prr pru pua pub pue pug pun pup pur puu ra- raa rab rae rag ran rao rap rar rau rba rbb rbe rbg rbn rbo rbp rbr rbu re- rea reb ree reg ren reo rep rer reu rga rgb rge rgg rgn rgo rgp rgr rna rnb rng rnn rno rnp rnr rnu roa rob roe rog ron roo rop ror rou rpa rpb rpe rpg rpn rpo rpp rpr rpu rra rrb rrg rrn rrp rrr rru rua rub rue rug run ruo rup rur ruu ua- uaa uab uae uag uan uao uap uar uau uba ubb ube ubg ubn ubo ubp ubr ubu uea ueb uee ueg uen uep uer uga ugb uge ugg ugn ugo ugp ugr ugu un- una unb une ung unn uno unp unr unu uoa uob uoe uog uon uoo uop uor up- upa upb upe upg upn upo upp upr upu ur- ura urb ure urg urn uro urp urr uru uua uue uug uun uur uuu