With no explanation, label each line with "location-GPE", "O", "location-other", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
Navy
had
been
perfecting
a
compressed-air
catapult
system
and
mounted
it
on
the
Santee
Dock
in
Annapolis
,
Maryland
.
The:O
Navy:organization-other
had:O
been:O
perfecting:O
a:O
compressed-air:O
catapult:O
system:O
and:O
mounted:O
it:O
on:O
the:O
Santee:location-other
Dock:location-other
in:O
Annapolis:location-GPE
,:O
Maryland:location-GPE
.:O