Tell me the meaning of the following statements.

a was surprised that although the food the farmers ate was not good, it contained great strength and an admiration for the farmers.

b shows that Jiangnan is delicate, just like glass, where there is no waist drum as bold and unrestrained as on the Loess Plateau, and there are some delicate and soft tones.

c praises the land on the Loess Plateau, which is different from other places, especially from Jiangnan, which is as fragile as glass.

These three paragraphs should be from one article.