With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1989
,
HS-11
changed
its
squadron
nickname
from
``
Sub
Seekers
``
to
``
Dragonslayers
``
.
In:O
1989:O
,:O
HS-11:organization-other
changed:O
its:O
squadron:O
nickname:O
from:O
``:O
Sub:organization-other
Seekers:organization-other
``:O
to:O
``:O
Dragonslayers:organization-other
``:O
.:O