With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Wendy
realizes
photographs
she
took
at
the
amusement
park
contain
clues
about
her
classmates
'
death
.
Wendy:person-other
realizes:O
photographs:O
she:O
took:O
at:O
the:O
amusement:O
park:O
contain:O
clues:O
about:O
her:O
classmates:O
':O
death:O
.:O