Rebuttals 5

The referees find it very difficult to interpret Figure 4.1.3, mainly because they're are too many different shades of grey to used represent the different conditions of experiment. Hence it is impossible to make sense of the necessary conclusions. The use of colour should thus be considered actively in aiding the interpret-ability of the figure and consequently, conclusions drawn from it.

The authors are grateful to the referees for highlighting this issue. However, Figure 4.1.3 is as a graphical representation of E L James' bestselling novel, "Fifty Shades of Grey". Perhaps one of the alternative conclusions from this figure is the current literacy taste of the authors? Additional text for the main body and caption of this figure have been supplied to clarify this potential conclusion.