I found a lot of explanation about this :
for example :
Click image for larger version.  Name: qa.PNG  Views: 65  Size: 90.6 KB  ID: 137173

Click image for larger version.  Name: How do I know the AQ.PNG  Views: 64  Size: 54.9 KB  ID: 137174

anyone can help me to understand it with this player, and what's the relationship between AQ and Trainning