one,two,three,four,five,six,seven,eight,nine,ten,eleven,
twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,
nineteen,twenty, twenty-one
first,second,third,fourth,fifth,sixth,seventh,eighth,ninth,
tenth,eleventh,twelfth,thirteenth, fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,
nineteenth,twentyth, twenty-first
one,two,three,four,five,six,seven,eight,nint,ten,eleven,
twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,
nineteen,twenty
first,second,third,fourth,fifth,sixth,seventh,eighth,ninth,
tenth,eleventh,twelfth,