In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

Q: Sentence: As ionospheric conditions and mobile-node locations change , these quality tuples will shift . 
 Question: when will something shift?

A: As ionospheric conditions and mobile-node locations change
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Q: Sentence: He is known for his work playing the Native American flute , and has been a successful Indian dancer , and has sung in a popular blues band . 
 Question: who is  known  for something?

A: He
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Q: Sentence: The new hybrid system is being designed as a scalable and modular system that could be applied across a variety of Land Rover models and powertrains . 
 Question: what could something be applied  across?

A:
a variety of Land Rover models and powertrains
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