#!/usr/bin/env python

from calais import calais_graph, normalize
from sys import argv
from re import sub

filename = argv[1]
content = file(filename).read()
g = calais_graph(content)

sparql = """
        PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
        PREFIX ct: <http://s.opencalais.com/1/type/em/e/>
        PREFIX cp: <http://s.opencalais.com/1/pred/>
        SELECT ?name
        WHERE {
          ?s rdf:type ct:Person .
          ?s cp:name ?name .
        }
        """

for row in g.query(sparql):
    print normalize(row[0])