This is perhaps in part due to my pedantry, and inpart due to advancing age
C, the group was founded and worked in Greece.
I think it is personification, because personification means to make non living things sound real, and the lines 149-151 follow that. “The taut gut vibrating hummed and sang a swallow’s note.”
Here are the answers to the given questions above.
1. The word "around" is both a preposition and an adverb.
2. The word "before" is both a preposition and an adverb.
3. The preposition for this sentence is the word "into".
4. The preposition is the word "at".
5. The preposition is the word "in".
Hope these answers help.