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 ":".
Henderson
published
his
results
in
1839
,
but
was
relegated
to
second
place
because
of
his
lack
of
confidence
.
Henderson:person-other
published:O
his:O
results:O
in:O
1839:O
,:O
but:O
was:O
relegated:O
to:O
second:O
place:O
because:O
of:O
his:O
lack:O
of:O
confidence:O
.:O