_:u1u2u3u4u5u6u7u8u9uaubvc"!"
u(.)(.*):v$1 D $2
v(.):"On the "o$1" day of Christmas,\nmy true love sent to me\n"$1
oc:"twelfth"
ob:"eleventh"
oa:"tenth"
o9:"ninth"
o8:"eighth"
o7:"seventh"
o6:"sixth"
o5:"fifth"
o4:"fourth"
o3:"third"
o2:"second"
o1:"first"
c:"Twelve drummers drumming"n b
b:"Eleven pipers piping"n a
a:"Ten lords a-leaping"n 9
9:"Nine ladies dancing"n 8
8:"Eight maids a-milking"n 7
7:"Seven swans a-swimming"n 6
6:"Six geese a-laying"n 5
5:"Five golden rings"n 4
4:"Four calling birds"n 3
3:"Three French hens"n 2
2:"Two turtle doves,\nAnd a"0
1:"A"0
0:" partridge in a pear tree"
D:".\n\n"
n:",\n"