Japanese participants included Kunio Maekawa, Yoshinobu Ashihara and Kazuo Shinohara.

Entity and relation annotations:
id: 0
type: entity
value: text: Kunio Maekawa
labels: <Person>
id: 1
type: entity
value: text: Yoshinobu Ashihara
labels: <Person>
id: 2
type: entity
value: text: Kazuo Shinohara
labels: <Person>