Apple used a number of C and T controllers in their PowerBook line.

Entity and relation annotations:
id: 0
type: entity
value: text: Apple
labels: <Organization>
id: 1
type: entity
value: text: PowerBook
labels: <Production>
id: 2
type: entity
value: text: C
labels: <Production>
id: 3
type: entity
value: text: T
labels: <Production>
type: relation
to_id: 1
labels: Organization:develops/produces/sells:Production
from_id: 0
type: relation
to_id: 2
labels: Organization:manages/uses:Production
from_id: 0
type: relation
to_id: 3
labels: Organization:manages/uses:Production
from_id: 0