f0="dawn";
f1="dusk";
f2="sunrise";
f3="sunset";
f4="sky";
f5="peak";
f6="summit";
f7="slope";
f8="valley";
f9="small valley";
f10="hilly";
f11="ridge";
f12="spring";
f13="source (of river)";
f14="mouth (of river)";
f15="bank";
f16="dam";
f17="jungle";
f18="rain forest";
f19="swamp";
f20="glacier";
f21="meadow";
f22="plain";
note="X";
total=23;