-er -up a-a a-b aaa aab aad aae aao aap aar aas aau ab- aba abb abd abe abo abp abr abs abu ad- ada adb add ade ado adp adr ads adu aea aeb aed aee aeo aep aer aes aeu aoa aob aod aoe aoo aop aor aos aou ap- apa apb apd ape apo app apr aps apu ar- ara arb ard are aro arp arr ars aru as- asa asb asd ase aso asp asr ass asu au- aua aub aud aue auo aup aur aus b-p b-u baa bab bad bae bao bap bar bas bau bba bbb bbd bbe bbo bbp bbr bbs bbu bda bdb bdd bde bdo bdp bdr bds bdu be- bea beb bed bee beo bep ber bes beu boa bob bod boe boo bop bor bos bou bpa bpb bpd bpe bpo bpp bpr bps bpu bra brb brd bre bro brp brr brs bru bsa bsb bsd bse bso bsp bsr bss bsu bua bub bud bue buo bup bur bus buu daa dab dad dae dao dap dar das dau dba dbb dbd dbe dbo dbp dbr dbs dbu dda ddb ddd dde ddo ddp ddr dds ddu de- dea deb ded dee deo dep der des deu doa dob dod doe doo dop dor dos dou dpa dpb dpd dpe dpo dpp dpr dps dpu dra drb drd dre dro drp drr drs dru dsa dsb dsd dse dso dsp dsr dss dsu dua dub dud due duo dup dur dus eaa eab ead eae eao eap ear eas eau eba ebb ebd ebe ebo ebp ebr ebs ebu ed- eda edb edd ede edo edp edr eds edu eea eeb eed eee eeo eep eer ees eo- eoa eob eod eoe eoo eop eor eos eou ep- epa epb epd epe epo epp epr eps epu era erb erd ere ero erp err ers eru es- esa esb esd ese eso esp esr ess esu eu- eua eub eud eue eup eur eus oaa oab oad oae oao oap oar oas oau ob- oba obb obd obe obo obp obr obs obu oda odb odd ode odo odp odr ods odu oea oeb oed oee oeo oep oer oes oo- ooa oob ood ooo oop oor oos op- opa opb opd ope opo opp opr ops or- ora orb ord ore oro orp orr ors oru os- osa osb osd ose oso osp osr oss osu ou- oua oud oue ouo oup our ous p-p paa pab pad pae pao pap par pas pau pba pbb pbd pbe pbo pbp pbr pbs pbu pda pdb pdd pde pdo pdp pdr pds pdu pea peb ped pee peo pep per pes peu poa pob pod poe poo pop por pos pou ppa ppb ppd ppe ppo ppp ppr pps ppu pra prb prd pre pro prp prr prs pru ps- psa psb psd pse pso psp psr pss psu pua pub pud pue pup pur pus puu ra- raa rab rad rae rao rap rar ras rau rba rbb rbd rbe rbo rbp rbr rbs rbu rda rdb rdd rde rdo rdp rdr rds rdu re- rea reb red ree reo rep rer res reu roa rob rod roe roo rop ror ros rou rpa rpb rpd rpe rpo rpp rpr rps rpu rra rrb rrd rrp rrr rrs rru rsa rsb rsd rse rso rsp rsr rss rsu rua rub rud rue ruo rup rur rus ruu saa sab sad sae sao sap sar sas sau sba sbb sbd sbe sbo sbp sbr sbs sbu sda sdb sdd sde sdo sdp sdr sds sdu se- sea seb sed see seo sep ser ses seu soa sob sod soe soo sop sor sos sou spa spb spd spe spo spp spr sps spu sr- sra srb srd sre sro srp srr srs ss- ssa ssb ssd sse sso ssp ssr sss ssu sua sub sud sue suo sup sur sus suu ua- uaa uab uad uae uao uap uar uas uau uba ubb ube ubo ubp ubr ubs ubu uda udb udd ude udo udp udr uds udu uea ueb ued uee uep uer ues uoa uob uod uoe uoo uop uor uos up- upa upb upd upe upo upp upr ups upu ur- ura urb urd ure uro urp urr urs uru usa usb usd use uso usp usr uss usu uua uue uur uus uuu