In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Example Input: The chair is in charge of the Board of Governors of the Federal Reserve System .
Example Output: The Chair of the Board of Governors of the Federal Reserve System is the head of the Federal Reserve , which is the central banking system of the United States .

Example Input: The volume of mercury in the tube is much less than the volume in the bulb .
Example Output: It consists of a bulb containing mercury attached to a glass tube of narrow diameter ; the volume of mercury in the tube is much less than the volume in the bulb .

Example Input: The differences between perennial , intermittent , and ephemeral streams are not exact and can change if different measures are used by different groups .
Example Output:
The boundaries between perennial , intermittent , and ephemeral channels are not defined , and subject to a variety of identification methods adopted by local governments , academics , and others with a need to classify stream-flow permanence .