Confused with keypoint_text_prompt

[Dimlife]

Hi, thanks for sharing the amazing work!
I would like to fully use the model for foot and leg keypoints. But i am confused with the keypoint_text_prompt settings. Could you please give some specific examples for this? Say, if I want to have the keypoints of knees, tips and heels. What kind of prompts should i input?
Many thanks for replying, really looking forward to that.