With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
first
evidence
of
women
playing
organized
football
was
in
1926
.
The:O
first:O
evidence:O
of:O
women:O
playing:O
organized:O
football:O
was:O
in:O
1926:O
.:O