/usr/share/doc/libfann-doc/examples/xor.data is in libfann-doc 2.1.0~beta~dfsg-8ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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4 2 1 -1 -1 -1 -1 1 1 1 -1 1 1 1 -1