With no explanation, label each line with "location-GPE", "person-athlete", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Kukuk
struggled
at
Salem
,
going
4–7
with
a
5.26
ERA
and
87
strikeouts
,
while
walking
71
batters
in
innings
pitched
.
Kukuk:person-athlete
struggled:O
at:O
Salem:location-GPE
,:O
going:O
4–7:O
with:O
a:O
5.26:O
ERA:O
and:O
87:O
strikeouts:O
,:O
while:O
walking:O
71:O
batters:O
in:O
innings:O
pitched:O
.:O