With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
On
13
August
,
the
Germans
made
an
all-out
effort
to
destroy
Fighter
Command
.
On:O
13:O
August:O
,:O
the:O
Germans:location-GPE
made:O
an:O
all-out:O
effort:O
to:O
destroy:O
Fighter:O
Command:O
.:O