With no explanation, label each line with "person-athlete", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Philipp
Schoch
earned
his
second
consecutive
gold
medal
in
the
men
's
event
,
winning
the
final
against
his
brother
Simon
.
Philipp:person-athlete
Schoch:person-athlete
earned:O
his:O
second:O
consecutive:O
gold:O
medal:O
in:O
the:O
men:O
's:O
event:O
,:O
winning:O
the:O
final:O
against:O
his:O
brother:O
Simon:person-athlete
.:O