The train is a successor to the Illinois Central Railroad's "Panama Limited".

Entity and relation annotations:
id: 0
type: entity
value: text: the Illinois Central Railroad
labels: <Organization>
id: 1
type: entity
value: text: Illinois
labels: <Location>
id: 2
type: entity
value: text: Panama
labels: <Location>
id: 3
type: entity
value: text: the Illinois Central Railroad's "Panama Limited"
labels: <Organization>
type: relation
to_id: 1
labels: Organization:located_in:Location
from_id: 0
type: relation
to_id: 2
labels: Organization:located_in:Location
from_id: 3
type: relation
to_id: 0
labels: Organization:is_subordinate_to:Organization
from_id: 3