/usr/share/axiom-20120501/input/folium.input is in axiom-test 20120501-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | draw(curve((t**2-1)/(3*t**2+1),t*(t**2-1)/(3*t**2+1)),_
t = -3..3, [title "Folium of Descartes"])
|