@Override
public void map(Object key, Text chunkURI, Context context) throws IOException, InterruptedException {
Users otherUsers = new Users();
Songs otherSongs = new Songs();
KDDParser parser = new KDDParser(chunkURI.toString(), context.getConfiguration());
parser.parse(otherSongs, otherUsers);
//forall items i //ith iteration
for (Song i : mySongs) {