During his time in Black Label Society, Ondich endorsed Pearl Drums and Pro-Mark Sticks.

Entity and relation annotations:
id: 0
type: entity
value: text: Black Label Society
labels: <Organization>
id: 1
type: entity
value: text: Ondich
labels: <Person>
id: 2
type: entity
value: text: Pearl Drums
labels: <Production>
id: 3
type: entity
value: text: Pro-Mark Sticks
labels: <Production>
type: relation
to_id: 0
labels: Person:affiliated_with:Organization
from_id: 1
type: relation
to_id: 2
labels: Person:Endorses:Production
from_id: 1
type: relation
to_id: 3
labels: Person:Endorses:Production
from_id: 1