instruction:
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.
question:
Fact: better senses have a positive impact on an animal 's survival.
answer:
animal survival senses.


question:
Fact: phase changes do not change mass.
answer:
Phase changes.


question:
Fact: boiling is when liquids are heated above their boiling point.
answer:

boiling can burn people.