These are some experiments for working with the Calais web service from Reuters: 
  http://developer.opencalais.com/

calais.py provides a wrapper around the REST api which lets you submit content
and get back a rdflib Graph.

Before you can start executing jobs you'll want to get a developer license key 
and store it in ~/.calais

You'll also want to install rdflib:

  easy_install rdflib

There are some sample scripts that use calais.py and some sparql to print out
pieces of information extracted from text:

  - cities
  - people
  - provinces

So you can do something like this:

  uqbar: ed$ ./cities data/ndnp\:1396148 | sort
  Boston
  Cincinnati
  Cleveland
  Fitchbiirg
  Fresno
  Great Barrington
  Mace
  Methuen
  Mullln
  Sacramento
  San Francisco
  WASHINGTON
  Washington

If you execute calais.py directly it'll print out the entire rdf graph for the
calais response as n3, which can be useful for discovering what other data is 
in the graph.

  uqbar: ed$ ./calais.py data/ndnp:1396148