Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: The values of strangeness assigned to various particles are based on decay systematics.

A: The values of strangeness assigned to various particles are based on what?
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Q: You can use night goggles to see infrared light.

A: What piece of technology can you use to see infrared light?
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Q: A heart attack or stroke is often a result of untreated atherosclerosis.

A:
What is often a result of untreated atherosclerosis?
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