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 )
turker_answer: This style of mandolin has 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 ) .
rule-based: 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 sounds holes do these styles of mandolins have .