TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: Who lack some of the defining traits of chordates? Answer: adult humans

SOLUTION: Adult humans lack some of the defining traits of chordates.

PROBLEM: Question: What type of friction is friction that acts on objects when they are sliding over a surface? Answer: sliding friction

SOLUTION: Sliding friction is friction that acts on objects when they are sliding over a surface.

PROBLEM: Question: Which activity is an example of a good health habit? Answer: wearing a hat while in the Sun

SOLUTION:
Wearing a hat while in the sun is an example of a good health habit.