You are given a sentence and your task is to generate another sentence that supports the given input.

Q: 200 million years 500 million years 600 million years 2 billion years These inclined earthquake zones are believed to define the positions of subducted plates where they plunge into the mantle beneath the overriding plate.

A: Earthquakes mark the motions of colliding plates and the locations where plates plunge into the mantle.
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Q: About 20 percent of the world's population lack access to safe drinking water, and 50 percent have no access to a sanitation system.

A: At least 20 percent of the world’s people do not have a ready supply of clean drinking water.
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Q: All primates have five flexible digits at the end of their hands and feet.

A:
Primates have five digits on each extremity.
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