My animal searches still resulted in other animals.
The other day I wondered if one could find the furthest wikipedia entry and which it would be. The classical "opposite" is usually very very close: do/undo, matter/anti-matter etc...
If you drop search_term from the query it bombs out though.
And when I searched for "KKz4xj0jON+5zfTrikgvIXiJLXE=" (head -c 20 /dev/urandom | base64) I got a 504.