With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
He
was
heavily
involved
in
City
's
coverage
of
the
aftermath
of
the
disaster
.
He:O
was:O
heavily:O
involved:O
in:O
City:O
's:O
coverage:O
of:O
the:O
aftermath:O
of:O
the:O
disaster:O
.:O