uniq words by shinh

H
${x
s/ \|$/\n/g
s/\n*//
:a
h
x
s/\n.*//
p
x
:
s/^\(..*\n\)\(.*\n\)*\1/\1\2/
t
s/.\+\n*//m
ta}
d

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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