public Instance extractToInstance(LinkNeighborhood linkNeighboor, String[] features)
            throws MalformedURLException {
        final boolean useImageFeatures = false;
        String url = linkNeighboor.getLink().toString();
        WordField[] linkFields = extract(linkNeighboor, url, useImageFeatures);
        return mapFeaturesToInstance(features, linkFields);
    }
Extract the information from links as word in the URL, anchor and around links, and converts
it to an Instance object

@param linkNeighboors The LinkNeighborhood instances to be converted to Instance
@param features String[] pre-defined words
@return HashMap mapping url -> instance
ache/src/main/java/achecrawler/link/classifier/builder/LinkNeighborhoodWrapper.java