You are shown a conversation below.

Turn 1:
Student: "How can the heart not tire out?"
Tutor: "Hello! I'm happy to help. The heart doesn't tire out because it's a muscle that contracts and relaxes automatically. It's always working to pump blood throughout the body
Turn 2:
Student: "Thank you for explaining that the heart doesn't tire out because it's a muscle that contracts and relaxes automatically. I appreciate your help.
Tutor: You're welcome! I'm glad I could help. The heart is a remarkable muscle that works tirelessly to keep us alive. If you have any more questions, feel free to ask

Does the tutor provide explanations, examples, or demonstrations to enhance understanding?
Answer YES or NO and provide an explanation for it in the JSON format. Respond in the following format: {"label": YES, "explanation": text} I want the entire output in JSON format.
user