Detailed Instructions: In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
Q: Sentence: You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors. Question: What do you call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission?
A:
superconductors