Warhawk was based on Hawkman and created specifically for "Batman Beyond".

Entity and relation annotations:
id: 0
type: entity
value: text: Warhawk
labels: <Production>
id: 1
type: entity
value: text: Hawkman
labels: <Person>
id: 2
type: entity
value: text: "Batman Beyond"
labels: <Work_of_art>
type: relation
to_id: 0
labels: Person:owns/uses:Production
from_id: 1