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In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Thermal energy is a term used loosely as a synonym for more rigorously-defined thermodynamic quantities such as the internal energy of a system; heat or sensible heat, which are defined as types of transfer of energy (as is work); or for the characteristic energy of a degree of freedom in a thermal system k T (\ displaystyle kT), where T (\ displaystyle T) is temperature and k (\ displaystyle k) is the Boltzmann constant.
Output:
which is the us english term for thermal energy