-al a-a a-b a-t aaa aab aal aan aas aat aau ab- aba abb abl abn abs abt abu al- ala alb all aln als alt alu an- ana anb anl ann ans ant anu as- asa asb asl asn ass ast asu at- ata atb atl atn ats att atu au- aua aub aul aun aus aut b-u baa bab bal ban bas bat bau bba bbb bbl bbn bbs bbt bbu bla blb bll bln bls blt blu bna bnb bnl bnn bns bnt bnu bsa bsb bsl bsn bss bst bsu bta btb btl btn bts btt btu bua bub bul bun bus but buu la- laa lab lal lan las lat lau lba lbb lbl lbs lbt lbu lla llb lll lln lls llt llu lna lnb lnl lnn lns lnt lnu lsa lsb lsl lsn lss lst lsu lta ltb ltl lts ltt ltu lua lub lul lun lus lut luu naa nab nal nan nas nat nau nba nbb nbl nbn nbs nbt nbu nla nlb nll nln nls nlt nlu nna nnb nnl nnn nns nnt nnu nsa nsb nsl nsn nss nst nsu nta ntb ntn nts ntt ntu nua nub nul nun nus nut nuu saa sab sal san sas sat sau sba sbb sbl sbn sbs sbt sbu sla slb sll sln sls slt slu sna snb snl snn sns snt snu ss- ssa ssb ssl ssn sss sst ssu sta stb stl stn sts stt stu sua sub sul sun sus sut suu taa tab tal tan tas tat tau tba tbb tbl tbn tbs tbt tbu tla tll tln tls tlt tlu tna tnb tnl tnn tns tnt tsa tsb tsl tsn tss tst tsu tta ttb ttl ttn tts ttt ttu tua tub tul tun tus tut tuu ua- uaa uab ual uan uas uat uau uba ubb ubl ubn ubs ubt ubu ula ulb ull uln uls ult ulu un- una unb unl unn uns unt unu usa usb usl usn uss ust usu uta utb utl utn uts utt utu uua uun uus uut uuu