-al -up a-a a-b a-c aaa aab aac aae aak aal aap aau ab- aba abb abc abe abk abl abp abu ac- aca acb acc ace ack acl acp acu aea aeb aec aee aek ael aep aeu aka akb akc ake akk akl akp aku al- ala alb alc ale alk all alp alu ap- apa apb apc ape apk apl app apu au- aua aub auc aue auk aul aup b-p b-u baa bab bac bae bak bal bap bau bba bbb bbc bbe bbk bbl bbp bbu bca bcb bcc bce bck bcl bcp bcu be- bea beb bec bee bek bel bep beu bka bkb bkc bke bkk bkl bkp bla blb blc ble blk bll blp blu bpa bpb bpc bpe bpl bpp bpu bua bub buc bue buk bul bup buu c-- caa cab cac cae cak cal cap cau cba cbb cbc cbe cbk cbl cbp cbu cca ccb ccc cce cck ccl ccp ccu ce- cea ceb cec cee cek cel cep ceu cka ckb ckc cl- cla clb clc cle clk cll clp clu cpa cpb cpc cpe cpk cpl cpp cpu cua cub cuc cue cuk cul cup cuu eaa eab eac eae eak eal eap eau eba ebb ebc ebe ebk ebl ebp ebu ec- eca ecb ecc ece eck ecl ecu eea eeb eec eee eek eel eep eka ekb ekc eke ekl ekp eku ela elb elc ele elk ell elp elu ep- epa epb epc epe epl epp epu eu- eua eub euc eue eul eup ka- kaa kab kac kae kak kal kap kau kba kbb kbc kbe kbk kbl kbp kbu kca kcb kcc kce kck kcl kcp kcu ke- kea keb kec kee kek kel kep kkb kkc kke kkk kkl kkp kku kl- kla klb klc klu kpa kpc kpe kpk kpl kpp kpu kub kuc kue kuk kul kup kuu l-p la- laa lab lac lae lak lal lap lau lba lbb lbc lbe lbk lbl lbp lbu lca lcb lcc lce lck lcl lcp lcu lea leb lec lee lek lel lep leu lka lkb lkl lkp lla llb llc lle llk lll llp llu lpa lpb lpc lpe lpk lpl lpp lpu lua lub luc lue luk lul lup luu p-p paa pab pac pae pak pal pap pau pba pbb pbc pbe pbk pbl pbp pbu pca pcb pcc pce pck pcl pcp pcu pea peb pec pee pek pel pep peu pka pkb pkc pke pkl pkp pku pla plb plc ple plk pll plp plu ppa ppb ppc ppe ppk ppl ppp ppu pua pub puc pue puk pul pup puu ua- uaa uab uac uae uak ual uap uau uba ubb ubc ube ubk ubl ubp ubu uca ucb ucc uce uck ucl ucp ucu uea ueb uec uee uel uep uka ukb ukc uke ukk ukl ukp uku ula ulb ulc ule ulk ull ulp ulu up- upa upb upc upe upk upp upu uua uuc uue uuu