With no explanation, label each line with "organization-sportsteam", "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
the
Pan
American
Games
,
the
United
States
team
went
unbeaten
in
seven
games
to
win
the
gold
medal
,
their
first
win
since
1963
.
In:O
the:O
Pan:organization-politicalparty
American:organization-politicalparty
Games:organization-politicalparty
,:O
the:O
United:organization-sportsteam
States:organization-sportsteam
team:O
went:O
unbeaten:O
in:O
seven:O
games:O
to:O
win:O
the:O
gold:O
medal:O
,:O
their:O
first:O
win:O
since:O
1963:O
.:O