With no explanation, label each line with "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
railroad
boom
in
the
1860s
on
the
Delmarva
Peninsula
was
fueling
land
speculation
.
A:O
railroad:O
boom:O
in:O
the:O
1860s:O
on:O
the:O
Delmarva:location-island
Peninsula:location-island
was:O
fueling:O
land:O
speculation:O
.:O