Swanson and Sons, as his sons Gilbert and Clarke had joined the business.

Entity and relation annotations:
id: 0
type: entity
value: text: Swanson and Sons
labels: <Organization>
id: 1
type: entity
value: text: Swanson
labels: <Person>
id: 2
type: entity
value: text: Gilbert
labels: <Person>
id: 3
type: entity
value: text: Clarke
labels: <Person>
type: relation
to_id: 0
labels: Person:founds:Organization
from_id: 1
type: relation
to_id: 3
labels: Person:family:Person
from_id: 2
type: relation
to_id: 0
labels: Person:affiliated_with:Organization
from_id: 2
type: relation
to_id: 0
labels: Person:affiliated_with:Organization
from_id: 3