With no explanation, label each line with "other-disease", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
concerned
with
the
immediate
local
effects
of
the
Chernobyl
disaster
.
It:O
is:O
concerned:O
with:O
the:O
immediate:O
local:O
effects:O
of:O
the:O
Chernobyl:other-disease
disaster:O
.:O