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]: An epicalyx , an additional whorl around the calyx of a single flower , is a modification of bracteoles .
[A]: An epicalyx , which forms an additional whorl around the calyx of a single flower , is a modification of bracteoles In other words , the epicalyx is a " group of bracts resembling a calyx " or " bracteoles forming a whorl outer to the calyx " .

[Q]: Many FIPS standards are modified versions of standards used in the wider community ( ANSI , IEEE , ISO , etc . )
[A]: Many FIPS specifications are modified versions of standards used in the technical communities , such as the American National Standards Institute ( ANSI ) , the Institute of Electrical and Electronics Engineers ( IEEE ) , and the International Organization for Standardization ( ISO ) .

[Q]: Black start is the process to start up in a power station from zero , without the help of power from the grid connected to the station .
[A]:
A black start is the process of restoring an electric power station or a part of an electric grid to operation without relying on the external electric power transmission network to recover from a total or partial shutdown .