With no explanation, label each line with "location-GPE", "O", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Even
as
the
New
Haven
added
ten
EP-5
locomotives
in
1955
,
change
was
coming
.
Even:O
as:O
the:O
New:location-GPE
Haven:location-GPE
added:O
ten:O
EP-5:product-train
locomotives:product-train
in:O
1955:O
,:O
change:O
was:O
coming:O
.:O