def _load_data(self):
     '''
     Returns an RDF representation of a painting on google art
     '''
     # Load HTML page
     document = BeautifulSoup(urllib2.urlopen(GOOGLE_ROOT + self.url).read())
     info_block = document.find(id='info')
 
     # Create the resource
     this = GART[self.url]
     self.graph.add((this, RDF.type, DCMI['StillImage']))
     self.graph.add((this, RDF.type, DCMI['PhysicalResource']))
     
     # Get general information
     content = info_block.find(attrs={'class':'content'})
     self.graph.add((this, DCT['title'], Literal(content.find('h2').string))) 
     self.graph.add((this, DCT['description'], Literal(content.find(attrs={'class':'altLang'}).string)))
     date_raw = content.find(attrs={'class':'year'}).string
     date_raw = re.search('([0-9]{4})', date_raw).group(0)
     self.graph.add((this, DCT['created'], Literal(date(int(date_raw), 1 , 1))))
     painter = get_dbpedia_resource(content.find('h3').string.split(',')[0])
     if painter == None:       
         painter = BNode()
         self.graph.add((painter, RDF.type, DCT['Agent']))
         self.graph.add((painter, FOAF['name'], content.find('h3').string.split(',')[0]))
     self.graph.add((this, DCT['creator'], painter))
     about_raw = content.findAll('p')[2].getText()
     medium = get_dbpedia_resource(about_raw[:about_raw.index('Height')])
     if medium != None:
         self.graph.add((this, DCT['medium'], URIRef(medium)))
     self.graph.add((this, DBP['height'], Literal(about_raw[about_raw.index('Height') + len('Height : '):about_raw.index('Width')])))
     self.graph.add((this, DBP['width'], Literal(about_raw[about_raw.index('Width') + len('Width : '):])))
     
     # Get extra information
     content = info_block.find(attrs={'class':'exclusive'})
     for link in content.findAll(attrs={'class':'outside'}):
         self.graph.add((this, FOAF['page'], URIRef(link.get('href'))))
     for block in content.findAll('dt'):
         if block.string == 'Tags':
             for list in block.findNextSiblings('dd')[0].findAll('tr'):
                 for k in list.getText().split(','):
                     self.graph.add((this, DCT['subject'], Literal(k)))
         if block.attrMap.has_key('class') and block.get('class') == 'artworkListTrigger':
             for link in block.findNextSiblings('dd')[0].findAll('a'):
                 if link.attrMap['href'] != "#":
                     self.graph.add((this, DCT['relation'], GARTW[link.get('href')[1:]]))
 def _load_data(self):
     '''
     Returns an RDF representation of the list of museums
     '''
     document = BeautifulSoup(urllib2.urlopen(GOOGLE_ROOT).read())
     list_block = document.find(id='list')
     for entry in  list_block.findAll('li'):
         city = entry.find('a').find('span').getText()
         name = entry.get('data-bg-museum')
         url = entry.get('data-museum-url')
         this = GARTW['index.rdf']
         museum = GARTW[url[1:]]
         self.graph.add((this, DCT['relation'], museum))
         self.graph.add((museum, DCT['title'], Literal(name))) 
         self.graph.add((museum, DCT['location'], get_dbpedia_resource(city)))