1. Dynamic Word Sense Disambiguation with Semantic Similarity
Sam Zhang

2. Ontology
- A web of knowledge organized in hierarchies

3. Odd One Out Which of the following don't belong: Man Woman
Tralfamadorian
Boy
Girl

4. Natural Language Toolkit
Python module
WordNet corpora

5. Wordnet: Lexical relations
Synonym / Antonym
Hypernym / Hyponym: X is a Y
Meronym / Holonym: X is a part of Y

6. Heuristic Least common hypernym. Wu & Palmer
Dynamic word sense disambiguation -- Which part of speech?  Which meaning?

7. Future Plans: OpenCyc Which of the following don't belong: Washington
Jefferson
Lincoln
Palin

8. Sources Image: http://nltk.googlecode.com/svn/trunk/doc/book/ch02.html
Wordnet:
NLTK:
OpenCyc: 
Ontological semantics, a history and overview: