-er -ey -up b-p b-u bbb bbc bbe bbp bbr bbs bbu bby bcb bcc bce bcp bcr bcs bcu bcy be- beb bec bee bep ber bes beu bey bpb bpc bpe bpp bpr bps bpu bpy brb bre brp brr brs bru bry bsb bsc bse bsp bsr bss bsu bsy bub buc bue bup bur bus buu buy by- byc bye byp byr bys byu c-- cbb cbc cbe cbp cbr cbs cbu cby ccb ccc cce ccp ccr ccs ccu ce- ceb cec cee cep cer ces ceu cey cpb cpc cpe cpp cpr cps cpu crb crc cre crp crr crs cru cry csb csc cse csp csr css csu csy cub cuc cue cup cur cus cuu cuy cyb cyc cye cyp cyr cys ebb ebc ebe ebp ebr ebs ebu eby ec- ecb ecc ece ecr ecs ecu eeb eec eee eep eer ees eey ep- epb epc epe epp epr eps epu erb erc ere erp err ers eru ery es- esb esc ese esp esr ess esu esy eu- eub euc eue eup eur eus eyc eye eyp eyr eys p-p pbb pbc pbe pbp pbr pbs pbu pby pcb pcc pce pcp pcr pcs pcu peb pec pee pep per pes peu pey ppb ppc ppe ppp ppr pps ppu prb prc pre prp prr prs pru pry ps- psb psc pse psp psr pss psu psy pub puc pue pup pur pus puu puy py- pyb pyc pye pyr pys pyu rbb rbc rbe rbp rbr rbs rbu rcb rcc rce rcp rcr rcs rcu re- reb rec ree rep rer res reu rey rpb rpc rpe rpp rpr rps rpu rrb rrc rrp rrr rrs rru rsb rsc rse rsp rsr rss rsu rub ruc rue rup rur rus ruu ruy ry- ryc rye ryr rys ryu ryy sbb sbc sbe sbp sbr sbs sbu sby scb scc sce scp scr scs scu se- seb sec see sep ser ses seu sey spb spc spe spp spr sps spu spy sr- srb src sre srp srr srs sry ss- ssb ssc sse ssp ssr sss ssu sub suc sue sup sur sus suu suy sy- syb syc sye syp syr sys syu ubb ubc ube ubp ubr ubs ubu uby ucb ucc uce ucp ucr ucs ucu ueb uec uee uep uer ues uey up- upb upc upe upp upr ups upu ur- urb urc ure urp urr urs uru ury usb usc use usp usr uss usu uuc uue uur uus uuu uyc uys uyu ybc ybe ybp ybr ybs yby ycc yce ycp ycs ycu ycy yeb yec yee yep yer yes yey yps ypu yrc yre yrp yrs yru ysb ysc yse ysp ysr yss ysu ysy yue yup yur yus yuu yuy yyb yyc yye yys yyu yyy