Give me some tests or advices, please.

Got WA4, cause ignore situation \par"

Input:
There is no "q in this sentence. \par"
"Talk child," said the unicorn.

She s\"aid, "\thinspace `Enough!', he said."
\endinput

Output:
There is no q in this sentence. \par``
''Talk child, said the unicorn.

She s\"aid, ``\thinspace `Enough!', he said.''
\endinput