With no explanation, label each line with "product-other", "O", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Great
Northern
Railway
(
Ireland
)
's
class
V
was
also
a
Smith
compound
.
The:O
Great:product-other
Northern:product-other
Railway:product-other
(:product-other
Ireland:product-other
):product-other
's:product-other
class:product-other
V:product-other
was:O
also:O
a:O
Smith:product-train
compound:O
.:O