With no explanation, label each line with "person-athlete", "person-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Eaves
signed
a
new
three-year
contract
with
Bolton
in
January
2013
.
Eaves:person-athlete
signed:O
a:O
new:O
three-year:O
contract:O
with:O
Bolton:person-other
in:O
January:O
2013:O
.:O