noe nog noh noi nok nol non noo not ntb ntd nte ntg nth nti ntk ntn nto ntt o-i ob- obb obd obe obg obh obi obk obl obn obo obt odb odd ode odg odh odi odl odn odo odt oeb oed oee oeg oeh oei oel oen oeo oet ogd oge ogg ogh ogi ogl ogn ogo ogt ohd ohe ohg ohh ohi ohl ohn oho oht oib oid oie oii oik oil oin oio oit okb okd oke okg oki okk okl oko olb old ole olg oli olk oll oln olo olt on- onb ond one ong onh oni onk onl onn ono ont oo- oob ood oog ooh ooi ook ool oon ooo oot ot- otb otd ote otg oth oti otk otl otn oto ott tbb tbd tbe tbg tbh tbi tbk tbl tbn tbo tbt tdb tdd tde tdg tdh tdi tdk tdl tdn tdo tdt te- teb ted tee teg teh tei tek tel ten teo tet tgb tge tgg tgh tgi tgk tgl tgn tgo tgt th- thb thd the thg thh thi thk thl thn tho tht tib tid tie tig tih tii tik til tin tio tit tkb tke tkg tkk tkl tko tkt tld tle tlg tlh tli tlk tll tln tlo tlt tnb tnd tne tng tnh tni tnk tnl tnn tno tnt to- tob tod toe tog toh toi tok tol ton too tot ttb ttd tte ttg tth tti ttk ttl ttn tto ttt