-ol -up b-p b-u bbb bbi bbl bbo bbp bbr bbu bi- bib bii bil bio bip bir biu blb bli bll blo blp blr blu bob boi bol boo bop bor bou bpb bpi bpl bpo bpp bpr bpu brb bri brl bro brp brr bru bub bui bul buo bup bur buu ibb ibi ibl ibo ibp ibr ibu iib iii iil iio iip iir iiu il- ilb ili ill ilo ilp ilr ilu io- iob ioi iol ioo iop ior iou ipb ipi ipl ipo ipp ipr ipu ir- irb iri irl iro irp irr iru iu- iub iui iup iur l-p lbb lbi lbl lbo lbp lbr lbu lib lii lil lio lip lir liu llb lli lll llo llp llr llu lob loi lol loo lop lor lou lpb lpi lpl lpo lpp lpr lpu lrb lri lro lrp lrr lru lub lui lul luo lup lur luu o-i ob- obb obi obl obo obp obr obu oib oii oil oio oip oir oiu olb oli oll olo olp olu oo- oob ooi ool ooo oop oor op- opb opi opl opo opp opr or- orb ori orl oro orp orr oru ou- oui oul ouo oup our p-p pbb pbi pbl pbo pbp pbr pbu pib pii pil pio pip pir piu plb pli pll plo plp plr plu pob poi pol poo pop por pou ppb ppi ppl ppo ppp ppr ppu prb pri prl pro prp prr pru pub pui pul pup pur puu rbb rbi rbl rbo rbp rbr rbu rib rii ril rio rip rir rli rll rlo rlp rlr rlu rob roi rol roo rop ror rou rpb rpi rpl rpo rpp rpr rpu rrb rri rrl rrp rrr rru rub rui ruo rup rur ruu ubb ubi ubl ubo ubp ubr ubu uib uii uil uio uip uir uiu ulb uli ull ulo ulp ulr ulu uob uol uoo uop uor up- upb upi upo upp upr upu ur- urb uri url uro urp urr uru uur uuu

bbbb bblb bbpr bibb bibi bibl bibo bili bill bilo bilu bio- bioi biol biou bipp bipu birb biri birl biro birr biru blio blip blir blob bloo blop blou blub blup blur bobb bobi bobo bobu boi- boii boil boiu boli boll bolo bolu boob bool boop boor bopp bor- bori boro borr boru boul boup bour bril brio brlp brob brol broo bror brou brrr brup bubb bubi bubo bubu buir buiu bulb buli bull bulu buol bur- burb buri burl buro burp burr buru ibri ibro iiii iiio iioi iioo iiop ilio ilir ill- illi illo illp iloo ilpr iobi ioii ioio iolo iooi iooo iopl iori ipil iplo ipop ippo ippr ipri ipur irbp iri- iril irio irip irlb irob irop irri irul iuiu iupp lblr libo libr libu liii liir lilb lili lill lilo lilu lio- lior lip- lipb lipi lipl lipo lipp lipu liri lirl liro lirp lirr liru llll lloo lob- lobb lobi lobo loir loiu loli loll lolo loob lool loop loor lopi lopp lopu lori loro loui loul loup lour louu lppl lprp lroi lrpu lrrr luli lull lulu lupi lupo lupu luri luup obbo oblu oboi obol obor obri obro oiii olbo olib olio olli ollo olor olur oobi oolo oooo opii opio opo- opor oppi oppo orbb orbi orbo orbu ori- oril orio orlo orlu oro- oror orpi orri orro orub orup ouii ouir oulu our- ouro ouu- pbil pblu pibb pibi piip pil- pili pill pilo pilu piob pipi pipo pipp piri pirl piro pirr piru plbr plib plio plip plob ploo plop plou plpp plri plup plur pobo poil poio poli poll polo polu pool poop poor pop- popi popo popp porb pori poro porr poui poul poup pour ppib ppli pplo pppo pppp ppru ppur pri- prii prlr pro- prob prol proo prop prou prri pruu publ pubu puir puiu puli pull pulo pulp pulu pupi pupl pupu pur- purb puri purl puro purp purr puru rbbb rbbr rib- ribo ribu rill rilo rilp rilu riol riou ripi ripl ripp ripr riri rob- robb robi robo robu roil roio roir roiu roll rolo rolp roob rooi rool roop roor ropo rori roro roru roub roul roup rpii rpob rrrr rubb rubi rubp rubu rull rulo rupp ruri ruro rurp ruru u-rp ubbi ubbo ubii ubir ubli ublo uipi uirr ulli ullo ullr ulo- ulul uor- uplb uplo upor uppp uppu upri upup urbi urib uriu uro- urol uroo urpo urri urup urur uulu uuri uuuu

bi-lo bibbo bibio bibri bilbi bilbo bili- billi billo billu bioul bipib bipil birol birou birur bloop bloor blorb blorp blurb blurr bo-bo bobbi bobr bobri bobup boilo boiro boll- bolli bollo bollu booru borbo borio boro- boroo borou borro borul borup boul- bouli boulo bouri brill briou brobo broil broll brolo brool brrrr bruiu brull bruri bulb- bulbi buliu bull- bulli bulou bulul burio burli burol buroo burri burro burru ibbur ibibo ibill iiiii ilio- illui ilobu ilori ilulu ioooi ioooo iorio ipour ipubi irill irobo irori irour irupi iuliu l-pop liboi libor libri libro libru liliu lilli lillo lilou liour lipo- lippi lippo liril lirio lirui liubo liuli liupo lobbo lobi- lobio lobir lobo- lobor loibl loilo lolli lollo lolol loobu lopou loppi lorio lorri lorup louri louro lubur luiro lulli lulul luppi lupul lurio lurup luuri o-r-b oblio oboli obolo oboro oilup ollio ollup ollur olour ooioo ooooo opio- opir oploo opobo oppol oribi orill oriol orlop orobo orolu oropi oruro ouir- oullo ouoro ourol pibor piilu piiri pili- pilio pillb pillo pilo- pilou pilrb pilur pioli pipil pipli pippi pippo pipri pipul pirlo pirol pirou pirri pirro pirui piuri piuro piuru plio- ploop plopi plopp plopu plupp pluri po-po poill poilu poipu polbo poli- polio polip polli pollo pollu polop polur pooli poopo poori popil poplr popoi popop poppi poppo popup poro- poroi porri porro porur poulp prill priob priol prior probo proll prolo proor prop- propl