The mushroom database is located in directory: 
	/home/sun/ieng3/cs151s/public/mushroom

	% ls
	README                  mushroom.attributes
	mini.examples           mushroom.examples
You should be able to read in the examples and attributes directly from the Lisp interpreter without copying the files to your directory. This will save space on the disk. The mushroom.examples file is big, so use the mini.examples file for debugging your code and in the cross-validation experiment that you will turn in with your report. Please consult the README file for more information.