So sorry not really must be Bash

[Budi]

How to sort, by CLI utility or Bash codes, a plain text page, based on
5th column out of 6 columns regarded by human but not by machine as
the first column has 1-4 sub columns, means 1, 2, 3, or 4 words, i.e.
non-space strings, with its starting word is always started with
alphabet but not always for the other words if any, and the rest
columns is only one single word i.e. one non-space string ?