With no explanation, label each line with "other-disease", "O", "organization-sportsteam", "building-sportsfacility", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
2020
,
the
Panthers
played
the
song
to
an
empty
Bank
of
America
Stadium
in
honor
of
all
front-line
workers
in
the
COVID-19
pandemic
.
In:O
2020:O
,:O
the:O
Panthers:organization-sportsteam
played:O
the:O
song:O
to:O
an:O
empty:O
Bank:building-sportsfacility
of:building-sportsfacility
America:building-sportsfacility
Stadium:building-sportsfacility
in:O
honor:O
of:O
all:O
front-line:O
workers:O
in:O
the:O
COVID-19:other-disease
pandemic:O
.:O