With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
After
beating
the
San
Francisco
Giants
in
the
1971
National
League
Championship
Series
,
the
Pirates
won
the
World
Series
,
beating
the
Baltimore
Orioles
in
seven
games
with
Oliver
as
their
regular
center
fielder
.
After:O
beating:O
the:O
San:organization-sportsteam
Francisco:organization-sportsteam
Giants:organization-sportsteam
in:O
the:O
1971:O
National:event-sportsevent
League:event-sportsevent
Championship:event-sportsevent
Series:event-sportsevent
,:O
the:O
Pirates:organization-sportsteam
won:O
the:O
World:O
Series:O
,:O
beating:O
the:O
Baltimore:organization-sportsteam
Orioles:organization-sportsteam
in:O
seven:O
games:O
with:O
Oliver:person-athlete
as:O
their:O
regular:O
center:O
fielder:O
.:O