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.
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Question: It is bounded on the west by the Gulf Stream ; on the north , by the North Atlantic Current ; on the east , by the Canary Current ; and on the south , by the North Atlantic Equatorial Current .

Answer: The sea is bounded on the west by the Gulf Stream , on the north by the North Atlantic Current , on the east by the Canary Current , and on the south by the North Atlantic Equatorial Current , a clockwise-circulating system of ocean currents termed the North Atlantic Gyre .

Question: A National Historic Landmark District ( NHLD ) is a historic district that is recognized as an NHL .

Answer: A National Historic Landmark ( NHL ) is a building , district , object , site , or structure that is officially recognized by the United States government for its outstanding historical significance .

Question: It existed from May 30 , 1854 , until March 1 , 1867 , when the part of the territory was admitted to the Union as the State of Nebraska .

Answer:
The Territory of Nebraska was an organized incorporated territory of the United States that existed from May 30 , 1854 , until March 1 , 1867 , when the final extent of the territory was admitted to the Union as the State of Nebraska .