With no explanation, label each line with "O", "location-bodiesofwater", "location-other", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
the
Eastern
Fleet
it
continued
escort
duties
in
the
Persian
Gulf
,
the
Bay
of
Bengal
and
the
Indian
Ocean
.
In:O
the:O
Eastern:organization-other
Fleet:organization-other
it:O
continued:O
escort:O
duties:O
in:O
the:O
Persian:location-other
Gulf:location-other
,:O
the:O
Bay:location-other
of:location-other
Bengal:location-other
and:O
the:O
Indian:location-bodiesofwater
Ocean:location-bodiesofwater
.:O