In Japan, "Aozora Bunko" is considered similar to Project Gutenberg.

Entity and relation annotations:
id: 0
type: entity
value: text: Japan
labels: <Location>
id: 1
type: entity
value: text: "Aozora Bunko"
labels: <Regulation>
id: 2
type: entity
value: text: Project Gutenberg
labels: <Regulation>