Yes, it is well in depth and has a line of reasoning. It is a well developed thesis
Baba Abdalla's blindness is a symbol in the story.
Hope this helps :)
(I always answer your questions lol)
This is expressed as Moisture Content or Water Content
Most food items have a water content. Even seemingly 'solidified' foods such as a piece of bread or bun have a certain water content in them.
For vegetables and fruits, the water content as a percentage of the weight can be huge.
For example, fruits such as Watermelons contain 92% in every bite with just 6% sugar and 2% fiber by weight.