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 ":".
The
site
was
host
to
national
political
conventions
in
1900
,
1936
,
1940
and
1948
.
The:O
site:O
was:O
host:O
to:O
national:O
political:O
conventions:O
in:O
1900:O
,:O
1936:O
,:O
1940:O
and:O
1948:O
.:O