-ol -up b-p b-u bbb bbe bbl bbo bbp bbs bbu be- beb bee bel beo bep bes beu blb ble bll blo blp bls blu bob boe bol boo bop bos bou bpb bpe bpl bpo bpp bps bpu bsb bse bsl bso bsp bss bsu bub bue bul buo bup bus buu ebb ebe ebl ebo ebp ebs ebu eeb eee eel eeo eep ees elb ele ell elo elp els elu eo- eob eoe eol eoo eop eos eou ep- epb epe epl epo epp eps epu es- esb ese esl eso esp ess esu eu- eub eue eul eup eus l-p lbb lbe lbl lbo lbp lbs lbu leb lee lel leo lep les leu llb lle lll llo llp lls llu lob loe lol loo lop los lou lpb lpe lpl lpo lpp lps lpu lsb lse lsl lso lsp lss lsu lub lue lul luo lup lus luu ob- obb obe obl obo obp obs obu oeb oee oel oeo oep oes olb ole oll olo olp ols olu oo- oob ool ooo oop oos op- opb ope opl opo opp ops os- osb ose osl oso osp oss osu ou- oue oul ouo oup ous p-p pbb pbe pbl pbo pbp pbs pbu peb pee pel peo pep pes peu plb ple pll plo plp pls plu pob poe pol poo pop pos pou ppb ppe ppl ppo ppp pps ppu ps- psb pse psl pso psp pss psu pub pue pul pup pus puu sbb sbe sbl sbo sbp sbs sbu se- seb see sel seo sep ses seu slb sle sll slo slp sls slu sob soe sol soo sop sos sou spb spe spl spo spp sps spu ss- ssb sse ssl sso ssp sss ssu sub sue sul suo sup sus suu ubb ube ubl ubo ubp ubs ubu ueb uee uel uep ues ulb ule ull ulo ulp uls ulu uob uoe uol uoo uop uos up- upb upe upo upp ups upu usb use usl uso usp uss usu uue uus uuu