Definition: 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.
Input: South Caucasus , also referred to as Transcaucasia or Transcaucasus , is the southern area of the Caucasus region between Europe and Asia , going from the Greater Caucasus to the Turkish and Iranian borders , between the Black and Caspian Seas .
Output:
Transcaucasia spans the southern portion of the Caucasus Mountains and their lowlands , straddling the border between the continents of Europe and Asia , and extending southwards from the southern part of the Greater Caucasus mountain range of southwestern Russia to the Turkish and Armenian borders , and from the Black Sea in the west to the Caspian Sea coast of Iran in the east .