[rules-users] Knowledge Agent example

Hi All, I was trying to get going with KnowledgeAgent and trying to understand how rules changes at runtime.Can anyone provide me a example or a basic tutorial for changing the rules at runtime so the knowledgebase is recreated. Any pseudocode can also be helpful. I tried to find googling, but there is only theory which is a bit complicated. Any help would be appreciated. RegardsVamshidhar