-ol b-u bbb bbd bbl bbn bbo bbt bbu bdb bdd bdl bdo bdt bdu blb bld bll bln blo blt blu bnb bnd bnl bnn bno bnt bnu bob bod bol bon boo bot bou btb btd btl btn bto btt btu bub bud bul bun buo but buu dbb dbd dbl dbn dbo dbt dbu ddb ddd ddl ddn ddo ddt ddu dl- dlb dld dll dlo dlt dlu dnb dnd dnl dnn dno dnt dob dod dol don doo dot dou dtb dtd dtl dtn dto dtt dtu dub dud dul dun duo dut lbb lbd lbl lbo lbt lbu ldb ldd ldl ldn ldo ldt ldu llb lld lll lln llo llt llu lnb lnd lnl lnn lno lnt lnu lob lod lol lon loo lot lou ltb ltd ltl lto ltt ltu lub lud lul lun luo lut luu nbb nbd nbl nbn nbo nbt nbu ndb ndd ndl ndn ndo ndt ndu nlb nld nll nln nlo nlt nlu nnb nnl nnn nno nnt nnu no- nob nod nol non noo not nou ntb ntd ntn nto ntt ntu nub nud nul nun nuo nut nuu ob- obb obd obl obn obo obt obu odb odd odl odn odo odt odu olb old oll oln olo olt olu on- onb ond onl onn ono ont onu oo- oob ood ool oon ooo oot ot- otb otd otl otn oto ott otu ou- oud oul oun ouo out tbb tbd tbl tbn tbo tbt tbu tdb tdd tdl tdn tdo tdt tdu tld tll tln tlo tlt tlu tnb tnd tnl tnn tno tnt to- tob tod tol ton too tot tou ttb ttd ttl ttn tto ttt ttu tub tud tul tun tuo tut tuu ubb ubl ubn ubo ubt ubu udb udd udl udn udo udt udu ulb uld ull uln ulo ult ulu un- unb und unl unn uno unt unu uob uod uol uon uoo uot utb utd utl utn uto utt utu uun uut uuu