Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: What is the unit of power in the measurement system that uses [Henry]?
answer: watt, kilowatt, milliwatt...
answer type: Unit of Power.
auxiliary information: The henry is the unit of electrical inductance in the International System of Units. The unit is named after Joseph Henry, the American scientist who discovered electromagnetic induction independently of and at about the same time as Michael Faraday in England. The magnetic permeability of a vacuum is 4œÄ√ó10^‚àí7 H m‚Åª¬π. The National Institute of Standards and Technology provides guidance for American users of SI to write the plural as "henries".

[Henry] is the unit of power used in what measurement system?