/usr/share/sofa/examples/Demos/Ophtalmo/data/mesh/chamber_boundary.sph is in sofa-data 1.0~beta4-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | sph 1.0
nums 1
sphe 1 0.0 5.0 -4.602087 2.778586
|