With no explanation, label each line with "O", "event-disaster", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
was
the
third
and
fourth
tornadoes
to
strike
the
area
that
year
with
the
previous
events
occurring
during
Hurricane
Isaias
in
Early-August
.
This:O
was:O
the:O
third:O
and:O
fourth:O
tornadoes:O
to:O
strike:O
the:O
area:O
that:O
year:O
with:O
the:O
previous:O
events:O
occurring:O
during:O
Hurricane:event-disaster
Isaias:event-disaster
in:O
Early-August:O
.:O