-er -up b-p b-u bbb bbe bbi bbo bbp bbr bbt bbu be- beb bee bei beo bep ber bet beu bi- bib bie bii bio bip bir bit biu bob boe boi boo bop bor bot bou bpb bpe bpi bpo bpp bpr bpt bpu brb bre bri bro brp brr brt bru btb bte bti bto btp btr btt btu bub bue bui buo bup bur but buu ebb ebe ebi ebo ebp ebr ebt ebu eeb eee eeo eep eer eet eib eie eii eio eip eir eit eiu eo- eob eoe eoi eoo eop eor eot eou ep- epb epe epi epo epp epr ept epu erb ere eri ero erp err ert eru etb ete eti eto etp etr ett etu eu- eub eue eui eup eur eut ibb ibe ibi ibo ibp ibr ibt ibu ie- iee iei iep ier iet iib iie iii iio iip iir iit iiu io- iob ioe ioi ioo iop ior iot iou ipb ipe ipi ipo ipp ipr ipt ipu ir- irb ire iri iro irp irr irt iru itb ite iti ito itp itt itu iu- iub iue iui iup iur iut o-i ob- obb obe obi obo obp obr obt obu oeb oee oei oeo oep oer oet oib oie oii oio oip oir oit oiu oo- oob ooi ooo oop oor oot op- opb ope opi opo opp opr opt or- orb ore ori oro orp orr ort oru ot- otb ote oti oto otp otr ott otu ou- oue oui ouo oup our out p-p pbb pbe pbi pbo pbp pbr pbt pbu peb pee pei peo pep per pet peu pib pie pii pio pip pir pit piu pob poe poi poo pop por pot pou ppb ppe ppi ppo ppp ppr ppt ppu prb pre pri pro prp prr prt pru pt- ptb pte pti pto ptp ptr ptt ptu pub pue pui pup pur put puu rbb rbe rbi rbo rbp rbr rbt rbu re- reb ree rei reo rep rer ret reu rib rie rii rio rip rir rit rob roe roi roo rop ror rot rou rpb rpe rpi rpo rpp rpr rpt rpu rrb rri rrp rrr rrt rru rtb rte rti rto rtp rtr rtt rtu rub rue rui ruo rup rur rut ruu tbb tbe tbi tbo tbp tbr tbt tbu te- teb tee tei teo tep ter tet teu tib tie tii tio tip tir tit tiu to- tob toe toi too top tor tot tou tpb tpe tpi tpo tpp tpr tpt tpu trb tre tri tro trp trr trt tru ttb tte tti tto ttp ttr ttt ttu tub tue tui tuo tup tur tut tuu ubb ube ubi ubo ubp ubr ubt ubu ueb uee uei uep uer uet uib uie uii uio uip uir uit uiu uob uoe uoo uop uor uot up- upb upe upi upo upp upr upt upu ur- urb ure uri uro urp urr urt uru utb ute uti uto utp utr utt utu uue uur uut uuu

bbbb bbeb bbet bbpr bebb bebe bebi bebo beeb beep beer beet beir beit beo- beor beot bepo bere beri bero berr bert beru bete beti beto bett betu beur bibb bibe bibi bibo bieb bier biet bieu bio- bioi biot biou bipp bipu birb bire biri biro birr birt biru bite bito bitt bitu bobb bobe bobi bobo bobu boee boeo boep boer boet boi- boie boii boit boiu boob booe boop boor boot bope bopp bor- bore bori boro borr bort boru botb bote boti boto bott boue boup bour bout bpoe bpot bpti breb bree brei breo brep brer bret brie brio brit brob broe broo bror brot brou brrr brue brup brut btbp btie btob btor btrt bttb bubb bube bubi bubo bubu buer bueu buie buir buit buiu bur- burb bure buri buro burp burr burt buru but- bute buti buto butt ebbo ebbr eber ebit eboe eboo ebor ebpo ebro ebru ebur eeee eero eete eetu eiei eier eiou eipo eipr eire eitb eiti eito eitr eoir eore eori eoto epee eper epi- epie epip epit epor epot eppo eppp eprb epro eprp epte epub erbb erbe ereb erei erer eret erie erio erit eriu erob eroe eroi eroo erpe erre erro ertu erub erur etbr etee eter etio etoe etre etro ette etti etto ettu etui eubi euer euoi eur- eure euro eurt i-be ibet ibie ibot ibri ibro ibtb ieet ieie ieio iere ieri iett iiie iiii iiio iiit iioi iioo iiop iitr iitt iobi ioee ioii ioio ioit iooi iooo iore iori iote ioto iper ipet ipie ipoe ipop ippo ippr ipri ipto ipur iput irbe irbp iree irer iri- irie irio irip irob irop irpe irre irri irte irti irtp itbe itep iter itet itie itoi itoo itor itou itri itto itup itur iuiu iupp o-eo obbo ober obet obie obit oboe oboi obor obot obre obri obro oere oeti oier oiii oire oirt oiti oobe oobi ooer oooo oore oort ootb ootp opei opep oper opet opie opii opio opit opo- opor oppi oppo opti opto orbb orbe orbi orbo orbu ore- oreb oreo orer ori- orie orio orit oro- oroe oror orot orpe orpi orri orro orte orto orub orup otee otep oter otit oto- otoe otoo otor otpp otre otro otte otti otto ottu otur ouer ouie ouii ouir ouit oupe our- oure ouro ourt out- outb oute outi outo ouu- peep peer peet peio peip peir peit peor peou pepe pepi pepo per- pere peri pero perp perr pert peru pete peti peto petr pett peur peut pibb pibi piep pier piet piip piob piot pipe pipi pipo pipp pire piri piro pirr piru pite piti pito pitr pitt pitu pobo poer poet poio poop poor poot pop- pope popi popo popp popt porb pore pori poro porr port pote poti poto pott potu poui poup pour pout pper ppib ppie pppo pppp ppru pptt