The "Mahagovinda Suttanta" refers to king Dhatarattha of Anga.

Entity and relation annotations:
id: 0
type: entity
value: text: The "Mahagovinda Suttanta"
labels: <Work_of_art>
id: 1
type: entity
value: text: Dhatarattha
labels: <Person>
id: 2
type: entity
value: text: Anga
labels: <Location>
id: 3
type: entity
value: text: king
labels: <Title>
type: relation
to_id: 3
labels: Person:holds_title:Title
from_id: 1
type: relation
to_id: 2
labels: Person:resides_at:Location
from_id: 1