Context: These styles generally have either two f-shaped soundholes like a violin (F-5 and A-5), or an oval sound hole (F-4 and A-4 and lower models) directly under the strings. Much variation exists between makers working from these archetypes, and other variants have become increasingly common. Generally, in the United States, Gibson F-hole F-5 mandolins and mandolins influenced by that design are strongly associated with bluegrass, while the A-style is associated other types of music, although it too is most often used for and associated with bluegrass. The F-5's more complicated woodwork also translates into a more expensive instrument.

Question: What shape sounds holes do these styles of mandolins have? 
Answer: two f-shaped soundholes like a violin (F-5 and A-5), or an oval sound hole (F-4 and A-4 and lower models)

Question: Where are the soundholes located?
Answer: directly under the strings

Question: What mandolin is associate with Bluegrass music?
Answer: Gibson F-hole F-5 mandolins

Question: What style is associate with other types of music?
Answer: A-style

Question: Why is the F-5 mandolin more expensive?
Answer: complicated woodwork

Question:  What shape sounds holes do these styles of mandolins not have?
Answer: Unanswerable

Question:  Where are the feelingholes located?
Answer: Unanswerable

Question: What mandolin is not associated with Bluegrass music?
Answer: Unanswerable

Question:  Why is the F-5 mandolin less expensive?
Answer: Unanswerable