oas(1) ob5(1) obl(2) obm(5) obo(1) obt(1) obu(1) obz(1) oce(41) och(1) oct(1) ode(1) odn(1) odr(1) ohw(1) okn(4) oko(1) ola(2) ole(1) oll(1) oly(1) omi(1) one(1) oni(2) onl(3) ont(1) ooo(2) ope(3) opp(1) opt(4) ore(2) org(2) ori(2) orl(1) orp(1) osk(1) ost(3) ote(1) oto(1) otp(1) ots(1) ouk(1) our(5) ozd(1) ozt(1)