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.

[Q]: Question: What type of tissues are major barriers to the entry of pathogens into the body? Answer: mucosal
[A]: Mucosal tissues are major barriers to the entry of pathogens into the body.


[Q]: Question: Trees release what gas as a byproduct of photosynthesis, thereby facilitating human respiration? Answer: oxygen
[A]: Trees release oxygen gas as a byproduct of photosynthesis, thereby facilitating human respiration.


[Q]: Question: What is applied to a rock to make it bend and flow? Answer: stress
[A]:
Stress is applied to a rock to make it bend and flow.


