With no explanation, label each line with "O", "product-ship", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
``
Empress
``
had
been
out
of
service
for
five
years
.
The:O
``:O
Empress:product-ship
``:O
had:O
been:O
out:O
of:O
service:O
for:O
five:O
years:O
.:O