/usr/share/php/simplepie/simplepie.inc is in libphp-simplepie 1.3.1+dfsg-3ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/php/simplepie/SimplePie.compiled.php
/usr/share/php/simplepie/SimplePie.compiled.php