Sentence: The city of Akita is part of the Akita Prefecture in Japan where the main ethnic group are the Japanese and is also the location of the Akita Museum of Art.

What structured data could we extract from this sentence?
Akita Museum of Art, country, Japan; Akita Museum of Art, location, Akita, Akita; Akita, Akita, isPartOf, Akita Prefecture; Japan, ethnicGroup, Japanese people