With no explanation, label each line with "location-GPE", "O", "location-road/railway/highway/transit", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
An
attempt
to
use
the
Little
Saw
Mill
Run
Railroad
as
a
substitute
connection
to
Pittsburgh
using
dual
gauge
track
led
to
the
Castle
Shannon
Railroad
War
of
1878
.
An:O
attempt:O
to:O
use:O
the:O
Little:location-road/railway/highway/transit
Saw:location-road/railway/highway/transit
Mill:location-road/railway/highway/transit
Run:location-road/railway/highway/transit
Railroad:location-road/railway/highway/transit
as:O
a:O
substitute:O
connection:O
to:O
Pittsburgh:location-GPE
using:O
dual:O
gauge:O
track:O
led:O
to:O
the:O
Castle:event-attack/battle/war/militaryconflict
Shannon:event-attack/battle/war/militaryconflict
Railroad:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
of:O
1878:O
.:O