human
Write a detailed description of a warm desert scene with sand dunes.
assistant
Giant dunes perspire fine lines of sand down their sloping sides as if in reaction to the sun's overwhelming heat. The real culprit, however, is likely a simple combination of gravity and wind. Regardless, the mounds slowly fade into the background, diminished by their own dusty sweat, only to be rebuilt by the next heavy, replenishing gust.