Detailed Instructions: 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.
Q: The Solar Hijri calendar is the official calendar of Iran and Afghanistan .
A:
The Solar Hijri calendar ( ; ) , also called the Solar Hejri calendar or Shamsi Hijri calendar , and abbreviated as SH , is the official calendar of Iran and Afghanistan .