With no explanation, label each line with "person-athlete", "organization-sportsteam", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Davis
was
the
2014
Opening
Day
starting
first
baseman
for
the
Mets
.
Davis:person-athlete
was:O
the:O
2014:O
Opening:O
Day:O
starting:O
first:O
baseman:O
for:O
the:O
Mets:organization-sportsteam
.:O