In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.

[Q]: Fact: the Earth being tilted on its rotating axis causes seasons.
[A]: Seasons are annual.


[Q]: Fact: being burried under soil and mud changes vegetation into peat through extreme heat and pressure in a swamp over a long period of time.
[A]: buried under soil and mud.


[Q]: Fact: Cynodonts became more mammal-like as they continued to evolve.
[A]:
Cynodonts.