-er a-a a-b a-c a-t aaa aab aac aad aae aak aao aap aar aat aaw ab- aba abb abc abd abe abk abo abp abr abt abw ac- aca acb acc acd ace ack aco acp acr act acw ad- ada adb adc add ade adk ado adp adr adt adw aea aeb aec aed aee aek aeo aep aer aet aew aka akb akc akd ake akk ako akp akr akw aoa aob aoc aod aoe aok aoo aop aor aot aow ap- apa apb apc apd ape apk apo app apr apt apw ar- ara arb arc ard are ark aro arp arr art arw at- ata atb atc atd ate ato atp atr att atw aw- awa awb awc awd awe awk awo awp awr awt aww b-p baa bab bac bad bae bak bao bap bar bat baw bba bbb bbc bbd bbe bbk bbo bbp bbr bbt bbw bca bcb bcc bcd bce bck bco bcp bcr bct bda bdb bdc bdd bde bdk bdo bdp bdr bdt bdw be- bea beb bec bed bee bek beo bep ber bet bew bka bkb bkc bke bkk bko bkp bkr bkt bkw boa bob boc bod boe bok boo bop bor bot bow bpa bpb bpc bpd bpe bpo bpp bpr bpt bpw bra brb brd bre brk bro brp brr brt brw bta btb btc btd bte btk bto btp btr btt btw bwa bwb bwc bwd bwk bwo bwp bwr c-- caa cab cac cad cae cak cao cap car cat caw cba cbb cbc cbd cbe cbk cbo cbp cbr cbt cbw cca ccb ccc ccd cce cck cco ccp ccr cct ccw cda cdb cdc cdd cde cdk cdo cdp cdr cdt cdw ce- cea ceb cec ced cee cek ceo cep cer cet cew cka ckb ckc ckd cko ckt ckw co- coa cob coc cod coe cok coo cop cor cot cow cpa cpb cpc cpd cpe cpk cpo cpp cpr cpt cpw cra crb crc crd cre crk cro crp crr crt crw cta ctb ctc ctd cte ctk cto ctp ctr ctt ctw cw- cwa cwb cwc cwd cwe cwk cwo cwp cwr cwt daa dab dac dad dae dak dao dap dar dat daw dba dbb dbc dbd dbe dbk dbo dbp dbr dbt dca dcb dcc dcd dce dck dco dcp dcr dct dcw dda ddb ddc ddd dde ddk ddo ddp ddr ddt ddw de- dea deb dec ded dee dek deo dep der det dew dka dkb dkc dke dkk dko dkp dkr dkt dkw doa dob doc dod doe dok doo dop dor dot dow dpa dpb dpc dpd dpe dpk dpo dpp dpr dpt dpw dra drb drc drd dre drk dro drp drr drt drw dta dtb dtc dtd dte dtk dto dtp dtr dtt dtw dwa dwb dwc dwe dwo dwp dwr dwt dww eaa eab eac ead eae eak eao eap ear eat eaw eba ebb ebc ebd ebe ebk ebo ebp ebr ebt ebw ec- eca ecb ecc ecd ece eck eco ecr ect ecw ed- eda edb edc edd ede edk edo edp edr edt edw eea eeb eec eed eee eek eeo eep eer eet eew eka ekb ekc ekd eke eko ekp ekr ekt eo- eoa eob eoc eod eoe eok eoo eop eor eot eow ep- epa epb epc epd epe epo epp epr ept epw era erb erc erd ere erk ero erp err ert erw eta etb etc etd ete etk eto etp etr ett etw ewa ewb ewc ewd ewe ewk ewo ewp ewr ewt eww k-t ka- kaa kab kac kad kae kak kao kap kar kat kaw kba kbb kbc kbd kbe kbk kbo kbp kbr kbw kca kcb kcc kcd kce kck kcp kcr kct kda kdb kdc kde kdk kdo kdp kdr kdt ke- kea keb kec ked kee kek keo kep ker ket kew kkb kkc kke kkk kkp kkr kkt koa kob koc kod koe kok koo kop kor kot kow kpa kpc kpd kpe kpk kpo kpp kpr kpt kpw kra krc krd krk kro krp krr krt krw kta ktb ktc kte ktk kto ktp ktr ktt ktw kw- kwa kwc kwd kwk kwo kwp kwt kww oaa oab oac oad oae oak oao oap oar oat oaw ob- oba obb obc obd obe obk obo obp obr obt obw oc- oca ocb occ ocd ock oco ocp ocr oct ocw oda odb odc odd ode odo odp odr odt oea oeb oec oed oee oeo oep oer oet oka okb okc okd oke okk oko okp okr okw oo- ooa oob ooc ood ook ooo oop oor oot oow op- opa opb opc opd ope opk opo opp opr opt opw or- ora orb orc ord ore ork oro orp orr ort ot- ota otb otc otd ote otk oto otp otr ott otw owa owb owc owd owe owk owo owp owt oww p-p paa pab pac pad pae pak pao pap par pat paw pba pbb pbc pbd pbe pbk pbo pbp pbr pbt pbw pca pcb pcc pcd pce pck pco pcp pcr pct pcw pda pdb pdc pdd pde pdk pdo pdp pdr pdt pea peb pec ped pee pek peo pep per pet pew pka pkb pkc pkd pke pko pkp pkr pkt poa pob poc pod poe pok poo pop por pot pow ppa ppb ppc ppd ppe ppk ppo ppp ppr ppt ppw pra prb prc prd pre prk pro prp prr prt prw pt- pta ptb ptc ptd pte ptk pto ptp ptr ptt ptw pwa pwb pwc pwd pwe pwo pwp pwr pwt ra- raa rab rac rad rae rak rao rap rar rat raw rba rbb rbc rbd rbe rbk rbo rbp rbr rbt rbw rca rcb rcc rcd rce rco rcp rcr rct rcw rda rdb rdc rdd rde rdo rdp rdr rdt re- rea reb rec red ree rek