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: Fires, mainly caused by what, are a natural disturbance in temperate grasslands? Answer: lightning
[A]: Fires, mainly caused by lightning, are a natural disturbance in temperate grasslands.


[Q]: Question: Can nematodes be a parasite of plants, animals, or both? Answer: both
[A]: Nematodes can be a parasite of both.


[Q]: Question: Goldfish, tuna, salmon, perch, and cod are examples of which group of fish? Answer: ray-finned fish
[A]:
Goldfish, tuna, salmon, perch, and cod are examples of ray-finned fish group of fish.