WordNet is a large lexical database of English. It groups words into sets of synonyms called synsets and describes semantic relations between these synsets. Synsets are linked by conceptual-semantic and lexical relations like hyponymy, hypernymy, meronymy and antonymy. WordNet can be used for tasks like word-sense disambiguation, document classification and retrieval, and question answering.

1. Structured lexicons and Lexical semantics Especially WordNet ® See D Jurafsky & JH Martin: Speech and Language Processing , Upper Saddle River NJ (2000): Prentice Hall, Chapter 16. and http://en.wikipedia.org/wiki/WordNet and explore WordNet: http://wordnet.princeton.edu/

3. animal bird fish ... canary eagle trout shark bald e. golden e. hawk e. bateleur space in general dimensions form motion size expansion distance interval contiguity reduction, deflation, shrinkage, curtailment, condensation .... hyponymy synonymy

11. WordNet is big

21. • {act,action,activity} • {animal,fauna} • {artifact} • {attribute,property} • {body,corpus} • {cognition,knowledge} • {communication} • {event,happening} • {feeling,emotion} • {food} • {group,collection} • {location,place} • {motive} • {natural object} • {natural phenomenon} • {person,human being} • {plant,flora} • {possession} • {process} • {quantity,amount} • {relation} • {shape} • {state,condition} • {substance} • {time}

23. deep shallow