For example, it hosted a pre-publication version of "Computational Chemistry" by David Young.

Entity and relation annotations:
id: 0
type: entity
value: text: "Computational Chemistry"
labels: <Work_of_art>
id: 1
type: entity
value: text: David Young
labels: <Person>
type: relation
to_id: 0
labels: Person:creates:Work_of_art
from_id: 1