-er -up b-p b-u bbb bbe bbi bbl bbp bbr bbt bbu be- beb bee bei bel bep ber bet beu bi- bib bie bii bil bip bir bit biu blb ble bli bll blp blr blt blu bpb bpe bpi bpl bpp bpr bpt bpu brb bre bri brl brp brr brt bru btb bte bti btl btp btr btt btu bub bue bui bul bup bur but buu ebb ebe ebi ebl ebp ebr ebt ebu eeb eee eel eep eer eet eib eie eii eil eip eir eit eiu elb ele eli ell elp elr elt elu ep- epb epe epi epl epp epr ept epu erb ere eri erl erp err ert eru etb ete eti etl etp etr ett etu eu- eub eue eui eul eup eur eut ibb ibe ibi ibl ibp ibr ibt ibu ie- iee iei iel iep ier iet iib iie iii iil iip iir iit iiu il- ilb ile ili ill ilp ilr ilt ilu ipb ipe ipi ipl ipp ipr ipt ipu ir- irb ire iri irl irp irr irt iru itb ite iti itl itp itt itu iu- iub iue iui iup iur iut l-p lbb lbe lbi lbl lbp lbr lbt lbu leb lee lei lel lep ler let leu lib lie lii lil lip lir lit liu llb lle lli lll llp llr llt llu lpb lpe lpi lpl lpp lpr lpt lpu lrb lri lrp lrr lrt lru ltb lte lti ltl ltp ltr ltt ltu lub lue lui lul lup lur lut luu p-p pbb pbe pbi pbl pbp pbr pbt pbu peb pee pei pel pep per pet peu pib pie pii pil pip pir pit piu plb ple pli pll plp plr plt plu ppb ppe ppi ppl ppp ppr ppt ppu prb pre pri prl prp prr prt pru pt- ptb pte pti ptl ptp ptr ptt ptu pub pue pui pul pup pur put puu rbb rbe rbi rbl rbp rbr rbt rbu re- reb ree rei rel rep rer ret reu rib rie rii ril rip rir rit rle rli rll rlp rlr rlt rlu rpb rpe rpi rpl rpp rpr rpt rpu rrb rri rrl rrp rrr rrt rru rtb rte rti rtl rtp rtr rtt rtu rub rue rui rup rur rut ruu tbb tbe tbi tbl tbp tbr tbt tbu te- teb tee tei tel tep ter tet teu tib tie tii til tip tir tit tiu tle tli tll tlp tlr tlt tlu tpb tpe tpi tpl tpp tpr tpt tpu trb tre tri trl trp trr trt tru ttb tte tti ttl ttp ttr ttt ttu tub tue tui tul tup tur tut tuu ubb ube ubi ubl ubp ubr ubt ubu ueb uee uei uel uep uer uet uib uie uii uil uip uir uit uiu ulb ule uli ull ulp ulr ult ulu up- upb upe upi upp upr upt upu ur- urb ure uri url urp urr urt uru utb ute uti utl utp utr utt utu uue uur uut uuu

bbbb bbeb bbet bblb bbpr bebb bebe bebi beeb beel beep beer beet beil beir beit bele beli bell belp belt belu bere beri berr bert beru bete beti bett betu beur bibb bibe bibi bibl bieb biel bier biet bieu bile bili bill bilt bilu bipp bipu birb bire biri birl birr birt biru bite bitt bitu blbt bleb blee blei blet bleu blip blir blit blub blue blup blur blut bpel bpti breb bree brei brel brep brer bret brie bril brit brlp brrr brue brup brut btbp btie btlp btrt bttb bubb bube bubi bubu buel buer bueu buie buir buit buiu bulb bule buli bull bult bulu bur- burb bure buri burl burp burr burt buru but- bute buti butt ebbr ebel eber ebit ebli ebru ebul ebur eeee eele eete eetu eiei eier eile eipr eire eitb eiti eitr el-b el-p elbe elbi elbu elee eler elet elie elil elit elle elli ellu elpe elpi elte elue elui elul epee eper epi- epie epil epip epit eple epll eppp eprb eprp epte epub erbb erbe ereb erei erel erer eret erie eril erit eriu erle erli erll erpe erre ertl ertu erub erur etbr etee etel eter etre ette etti ettu etui eubi euer eule eur- eure eurt i-be ibet ibie ible ibri ibtb ibtl ieet ieie iele iere ieri iett iiie iiii iiit iitr iitt ile- iler ilet ilie ilir ilit ill- ille illi illp illt ilpe ilpr ilre ilut iper ipet ipie ipil ippr ipri ipur iput irbe irbp iree irel irer iri- irie iril irip irlb irpe irre irri irte irti irtp irul itbe itel itep iter itet itie itil itll itri itup itur iuel iuiu iupp lblr lbrt le-u lebu leel leep leer leet leib leie leil leir leit lele leli lell lelu lepe lepi lepp lept lere lerp lert lete leti lett leur libe libr libu lieb liel liep lier liet lieu liii liir lilb lile lili lill lilt lilu lip- lipb lipe lipi lipl lipp lipu lire liri lirl lirp lirr lirt liru litb lite liti litl litr litt litu liue liut llet lleu llll lppl lprp lptb lrpu lrrr ltbl ltee ltib lttr lube luer luit lule luli lull lulu lupe lupi lupu lure luri lurt lute luti luup pbil pblu pebl peel peep peer peet peil peip peir peit pel- pelb pele pell pelt pelu pepe pepi per- pere peri perl perp perr pert peru pete peti petr pett peul peur peut pibb pibi piel piep pier piet piip pil- pile pili pill pilt pilu pipe pipi pipp pire piri pirl pirr piru pite piti pitr pitt pitu plbr ple- pleb plee plei plet pleu plib plie plip plit plpp plri pltt plue plup plur pper ppib ppie pple ppli pppp ppru pptt ppur pre- preb pree prel prep pret preu pri- prie prii prle prlr prri prti prtp prtr prue prut pruu ptbl pter ptui pu-e