Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.

Answer: What do you call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission?


Question: Dig a well allows people to access water in an aquifer that does not flow from a spring or a geyser.

Answer: How can people access water in an aquifer that does not flow from a spring or a geyser?


Question: Of the four main wobble base pairs, guanine is paired with uracil.

Answer:
Of the four main wobble base pairs, guanine is paired with what?