nif nii nik nil nin nio nir nka nke nkf nki nkk nkn nko nkr nla nlb nld nle nlf nli nlk nll nln nlo nlr nna nnb nne nnf nni nnk nnl nnn nno no- noa nob nod noe nof noi nok nol non noo nor nra nrb nrd nre nrf nri nrk nrl nrn nro nrr o-i oaa oab oad oae oaf oai oak oal oan oao oar ob- oba obb obd obe obf obi obk obl obn obo obr oda odb odd ode odf odi odl odn odo odr oea oeb oed oee oef oei oel oen oeo oer of- ofa ofb ofd ofe off ofi ofl ofn ofo ofr oia oib oid oie oif oii oik oil oin oio oir oka okb okd oke oki okk okl oko okr ola olb old ole olf oli olk oll oln olo on- ona onb ond one onf oni onk onl onn ono onr oo- ooa oob ood oof ooi ook ool oon ooo oor or- ora orb ord ore orf ori ork orl orn oro orr ra- raa rab rad rae raf rai rak ral ran rao rar rba rbb rbd rbe rbf rbi rbk rbl rbn rbo rbr rda rdb rdd rde rdf rdi rdl rdn rdo rdr re- rea reb red ree ref rei rek rel ren reo rer rfa rfb rfd rfe rff rfi rfk rfl rfn rfo rfr ria rib rid rie rif rii rik ril rin rio rir rkb rke rkf rkk rko rla rld rle rlf rli rll rln rlo rlr rna rnb rnd rni rnn rno rnr roa rob rod roe rof roi rok rol ron roo ror rra rrb rrd rrf rri rrk rrl rrn rrr