Throughout the chatbot main workflow, I have many opportunities where users can ask questions and the chatbot will answer based on the knowledge base. For every part that allows user to ask question through "Raw Input" and "Single Choice," do I have to create a separate variable to store the result so that AI Task can use that as an input to create an output? I used only one @workflow.Question all throughout and all my node relationships are messed up. For example, my last Q&A node is all of a sudden connected to the beginning node. Thanks for your guidance!