With no explanation, label each line with "O", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
ball
went
into
the
Yankees
'
dugout
.
The:O
ball:O
went:O
into:O
the:O
Yankees:organization-sportsteam
':O
dugout:O
.:O