public void appendResult(){
Writer turtleOut = null;
try {
turtleOut = new BufferedWriter( new FileWriter(tempFile));
ResultTurtleWriter writer = new ResultTurtleWriter(exp, turtleOut);
writer.writeExperiment();
turtleOut.close();
} catch (IOException e) {
Global.log().warning("Failed to write result to temporary file");
return;
}