-al -ol a-a a-b a-t aaa aab aak aal aao aar aat aau ab- aba abb abk abl abo abr abt abu aka akb akk akl ako akr aku al- ala alb alk all alo alr alt alu aoa aob aok aol aoo aor aot aou ar- ara arb ark arl aro arr art aru at- ata atb atl ato atr att atu au- aua aub auk aul auo aur aut b-u baa bab bak bal bao bar bat bau bba bbb bbk bbl bbo bbr bbt bbu bka bkb bkk bkl bko bkr bkt bla blb blk bll blo blr blt blu boa bob bok bol boo bor bot bou bra brb brk brl bro brr brt bru bta btb btk btl bto btr btt btu bua bub buk bul buo bur but buu k-t ka- kaa kab kak kal kao kar kat kau kba kbb kbk kbl kbo kbr kbu kkb kkk kkl kkr kkt kku kl- kla klb klo klr klt klu koa kob kok kol koo kor kot kou kra krk krl kro krr krt kru kta ktb ktk ktl kto ktr ktt ktu kub kuk kul kur kut kuu la- laa lab lak lal lao lar lat lau lba lbb lbk lbl lbo lbr lbt lbu lka lkb lkl lkr lkt lla llb llk lll llo llr llt llu loa lob lok lol loo lor lot lou lra lrb lrk lro lrr lrt lru lta ltb ltk ltl lto ltr ltt ltu lua lub luk lul luo lur lut luu oaa oab oak oal oao oar oat oau ob- oba obb obk obl obo obr obt obu oka okb okk okl oko okr oku ola olb olk oll olo olt olu oo- ooa oob ook ool ooo oor oot or- ora orb ork orl oro orr ort oru ot- ota otb otk otl oto otr ott otu ou- oua ouk oul ouo our out ra- raa rab rak ral rao rar rat rau rba rbb rbk rbl rbo rbr rbt rbu rkb rkk rko rkt rku rla rll rlo rlr rlt rlu roa rob rok rol roo ror rot rou rra rrb rrk rrl rrr rrt rru rta rtb rtk rtl rto rtr rtt rtu rua rub ruk ruo rur rut ruu taa tab tak tal tao tar tat tau tba tbb tbk tbl tbo tbr tbt tbu tka tkb tkk tkl tko tkr tkt tla tlk tll tlo tlr tlt tlu to- toa tob tok tol too tor tot tou tra trb trk trl tro trr trt tru tta ttb ttk ttl tto ttr ttt ttu tua tub tuk tul tuo tur tut tuu ua- uaa uab uak ual uao uar uat uau uba ubb ubk ubl ubo ubr ubt ubu uka ukb ukk ukl ukr uku ula ulb ulk ull ulo ulr ult ulu uoa uob uok uol uoo uor uot ur- ura urb urk url uro urr urt uru uta utb utk utl uto utr utt utu uua uur uut uuu