nkn nko nkr nla nlb nlc nlg nlh nli nlk nll nln nlo nlr nna nnb nnc nng nnh nni nnk nnl nnn nno no- noa nob noc nog noh noi nok nol non noo nor nra nrb nrc nrg nri nrk nrl nrn nro nrr o-i oaa oab oac oag oah oai oak oal oan oao oar ob- oba obb obc obg obh obi obk obl obn obo obr oc- oca ocb occ ocg och oci ock ocl ocn oco ocr oga ogc ogg ogh ogi ogl ogn ogo oha ohc ohg ohh ohi ohl ohn oho ohr oia oib oic oii oik oil oin oio oir oka okb okc okg oki okk okl oko okr ola olb olc olg oli olk oll oln olo on- ona onb onc ong onh oni onk onl onn ono onr oo- ooa oob ooc oog ooh ooi ook ool oon ooo oor or- ora orb orc org orh ori ork orl orn oro orr ra- raa rab rac rag rah rai rak ral ran rao rar rba rbb rbc rbg rbh rbi rbk rbl rbn rbo rbr rca rcb rcc rcg rch rci rcl rcn rco rcr rga rgb rgc rgg rgh rgi rgk rgn rgo rgr rh- rha rhb rhc rhg rhh rhi rhl rhn rho rhr ria rib ric rig rih rii rik ril rin rio rir rkb rkc rkg rkk rko rla rlc rlg rlh rli rll rln rlo rlr rna rnb rnc rng rnh rni rnn rno rnr roa rob roc rog roh roi rok rol ron roo ror rra rrb rrc rrg rrh rri rrk rrl rrn rrr