Via Jamie’s Weblog: a nice tool for Natural Language processing: KBtextmaster.

Input text: President George Bush met with the president of Mexico. President Bush and President Fox talked about foreign trade issues. They then went shopping and bought silk shirts made in India and radios made in China.

Summary: They{President Bush, President Fox} then went shopping and bought

silk shirts made in India and radios made in China.

KBtextmaster User Guide [pdf]