I didn't know where else to send this, but just to let you guys know ... the following definitions/examples of holonyms and meronyms have been mistakenly reversed on the the following pages: http://nodebox.net/code/index.php/Linguistics
http://nodebox.net/code/index.php/WordNet
Meronyms are actually the components, and holonyms are the "collections". You can verify it here.
http://wordnetweb.princeton.edu/perl/webwn?o2=&o0=1&o8=1&o1=1&o7=&o5=&o9=&o6=&o3=&o4=&s=computer&i=2&h=100000000#c
The noun_holonym() command returns components of the given word:
print wordnet.noun_holonym("computer")
[['busbar', 'bus'], ['cathode-ray tube', 'CRT'],
['central processing unit', 'CPU', 'C.P.U.', 'central processor',
'processor', 'mainframe'] ...
The noun_meronym() command returns the collection in which the given word can be found:
print wordnet.noun_meronym("tree")
[['forest', 'wood', 'woods']]