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 ":".
Agriculture
in
the
area
is
concentrated
on
green
tea
production
and
horticulture
.
Agriculture:O
in:O
the:O
area:O
is:O
concentrated:O
on:O
green:O
tea:O
production:O
and:O
horticulture:O
.:O