question: Japan hold and extensive collection of what ?
answer: 20th Century mandolin music from Europe and one of the most complete collections of mandolin magazines from mandolin 's golden age
turker_answer: Japan hold and extensive collection of 20th Century mandolin music from Europe and one of the most complete collections of mandolin magazines from mandolin 's golden age .
rule-based: Japan hold and extensive collection of 20th Century mandolin music from Europe and one of the most complete collections of mandolin magazines from mandolin 's golden age .