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
GP18
replaced
the
GP9
in
EMD
's
catalog
.
The:O
GP18:product-train
replaced:O
the:O
GP9:product-train
in:O
EMD:product-other
's:O
catalog:O
.:O