He sent Sanderson a tracing of Henschel's latest Belpaire boiler.

Entity and relation annotations:
id: 0
type: entity
value: text: Sanderson
labels: <Person>
id: 1
type: entity
value: text: Henschel
labels: <Organization>
id: 2
type: entity
value: text: Belpaire boiler
labels: <Production>
type: relation
to_id: 2
from_id: 1