With no explanation, label each line with "O", "event-sportsevent", "building-sportsfacility", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
2021
,
TD
Garden
will
host
the
2021
Laver
Cup
in
September
.
In:O
2021:O
,:O
TD:building-sportsfacility
Garden:building-sportsfacility
will:O
host:O
the:O
2021:event-sportsevent
Laver:event-sportsevent
Cup:event-sportsevent
in:O
September:O
.:O