Every directory is one experiment.

In each experiment directory there are a number of directories with names of the following format:
	voip-USERID-STARTTIME_ENDTIME
Each of these directories represent one dialogue.

In each dialogue directory
	session.mxl		- dialogue log
	session.cfg		- system configuration file
	feedback.xml		- user feedback
	database.txt		- ontology file
	rules.txt		- ontology file

In session.xml
	<systurn>		- system turn
	<userturn>		- user turn
	<asrhyp>		- asr hypothesis with confidence score 
	<dact>			- system dialogue act
	<semihyp>		- semantic user hypothesis

In feedback.xml
	goal:		describes the user goal
	task:		goal in natural language
	question:	contains the feedback

database.txt		- contains dialogue entities that the dialogue system can talk about
rules.txt		- describes all concepts that the dialogue system can talk about