The lower lip (lower lip or lower lip) is a physiological part of the human body, located behind the mandible and below the posterior foramen, which constitutes the posterior wall of the anterior oral cavity and mainly plays a role in supporting food.
The five senses are a kind of folk knowledge to judge fate by observing facial features. It is a branch of the theory of yin-yang and five elements in classical philosophy. For the record, the answers are for reference only. Please don't be blind and superstitious.