b-p bbb bbe bbi bbo bbp bbs bbt be- beb bee bei beo bep bes bet bi- bib bie bii bio bip bis bit bob boe boi boo bop bos bot bpb bpe bpi bpo bpp bps bpt bsb bse bsi bso bsp bss bst btb bte bti bto btp bts btt ebb ebe ebi ebo ebp ebs ebt eeb eee eeo eep ees eet eib eie eii eio eip eis eit eo- eob eoe eoi eoo eop eos eot ep- epb epe epi epo epp eps ept es- esb ese esi eso esp ess est etb ete eti eto etp ets ett ibb ibe ibi ibo ibp ibs ibt ie- iee iei iep ies iet iib iie iii iio iip iis iit io- iob ioe ioi ioo iop ios iot ipb ipe ipi ipo ipp ips ipt is- isb ise isi iso isp iss ist itb ite iti ito itp its itt o-i ob- obb obe obi obo obp obs obt oeb oee oei oeo oep oes oet oib oie oii oio oip ois oit oo- oob ooi ooo oop oos oot op- opb ope opi opo opp ops opt os- osb ose osi oso osp oss ost ot- otb ote oti oto otp ots ott p-p pbb pbe pbi pbo pbp pbs pbt peb pee pei peo pep pes pet pib pie pii pio pip pis pit pob poe poi poo pop pos pot ppb ppe ppi ppo ppp pps ppt ps- psb pse psi pso psp pss pst pt- ptb pte pti pto ptp pts ptt sbb sbe sbi sbo sbp sbs sbt se- seb see sei seo sep ses set sib sie sii sio sip sis sit sob soe soi soo sop sos sot spb spe spi spo spp sps spt ss- ssb sse ssi sso ssp sss sst stb ste sti sto stp sts stt tbb tbe tbi tbo tbp tbs tbt te- teb tee tei teo tep tes tet tib tie tii tio tip tis tit to- tob toe toi too top tos tot tpb tpe tpi tpo tpp tps tpt tsb tse tsi tso tsp tss tst ttb tte tti tto ttp tts ttt

-ose bbbb bbbs bbeb bbet bebb bebe bebi bebo beeb beep bees beet beis beit beo- beos beot bepo bes- bese beso bess best bete beti beto bets bett bibb bibe bibi bibo bibs bieb bies biet biis bio- bioi bios biot bipp bips bis- bise biso bisp biss bist bite bito bits bitt bobb bobe bobi bobo bobs boee boeo boep boes boet boi- boie boii bois boit boob booe boop boos boot bope bopp bops bose bosi boso boss bost botb bote boti boto bots bott bpoe bpot bpti bseb bsee bses bset bsos bspp bsse bsts btbp btie btob btps btss bttb ebbo ebbs ebes ebis ebit eboe eboo ebos ebpo eeee eees eeps eese eesi eete eets eiei eies eipo eise eiso eiss eist eitb eiti eito eoes eois eost eoto eots epee epes epi- epie epip epis epit epos epot eppo eppp epps epsi epsp epss epte esbo esbs esee eseo eses eset esie esis esit eso- esop esos espe espi espo espp esps esse essi esso essp esst este esto estp ests etee etes etio etoe etos etsi ette etti etto i-be ibes ibet ibie ibis ibos ibot ibss ibtb ibts ieet ieie ieio iesi ieso iest iett iies iiie iiii iiio iiis iiit iioi iioo iiop iios iisi iisp iist iitt iobi ioee ioii ioio ioit iooi iooo ioos iops ioso iote ioto ipes ipet ipie ipoe ipop ipos ippo ipse ipsi ipso ipsp ipss ipto ipts isbe isbt iseb isee iseo isep ises iset isie isis isit iso- isop isos ispe isps isse issi isso issp isss iste isti isto istp ists itbe itbs itep ites itet itie itis itoi itoo itos itse itsi itso itsp itto o-eo obbo obes obet obie obis obit oboe oboi obos obot obss obst obts oeps oese oest oeti oies oiii oios oise oist oiti oobe oobi ooes oooo ooos oops oose oosi oost ootb ootp oots opei opep opes opet opie opii opio opis opit opo- opos oppi oppo opps opsi opti opto opts osbe osbp osee osei oses oset osie osii osip osis osoi osoo osos ossb osse ossi osso oste osti osts otbs otee otep otes otis otit oto- otoe otoo otos otpp otse otso otte otti otto otts pbsp peep pees peet peio peip peis peit pepe pepi pepo peps pese pesi peso pess pest pete peti peto pets pett pibb pibi piep pies piet piip piob piot pipe pipi pipo pipp pips pise pisi piso piss pist pite piti pito pits pitt pobo pobs poes poet poio pois poop poos poot pop- pope popi popo popp pops popt posb pose posi poso poss post pote poti poto pots pott ppib ppie ppos pppo pppp ppps ppss ppts pptt psbt pseb psei psip psis psoi psos pspi pspp psps psse psso psst psts ptop s-ib s-ii s-os sbbs sbot sbse sbsi sbsp sbst se-e se-i se-o se-s se-t sebe sebi sebo sebs sebt seeb seep sees seet seie seii seip seis seit seoi seop sepe sepi sepo sepp seps sept sese sesi seso sess sest set- sete seti seto sets sett sibe sibi sibo sibs sies siit sioe siop sios siot sipe sipi sipo sipp sips sipt sise sisi siss sist sit- site siti sito sits sitt sobe sobo sobp sobs sobt soeo soep soes soie sois soit soop soos soot sope sopi sopo sopp sops sose sosi soso soss sost sote soto sotp sots speb spee spes spet spib spie spio spip spis spit spoo spop spos spot spps spse spso spsp spss spst sptb spto spts ssee ssep sses sset ssis ssit ssop ssot sspe sspo ssps sspt sssb sssi ssss sstb sstp ssts stbs stee steo step stes stet stib stie stio stip stis stit stob stoe stoo stop stos stot stpp stps stsi stss tbbs tbit tbsp