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 ":".
Intensity
built
up
due
to
this
historic
,
first-ever
postseason
meeting
between
the
two
longtime
rivals
.
Intensity:O
built:O
up:O
due:O
to:O
this:O
historic:O
,:O
first-ever:O
postseason:O
meeting:O
between:O
the:O
two:O
longtime:O
rivals:O
.:O