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
original
order
was
for
50
tanks
;
65
had
been
built
by
mid
1939
.
The:O
original:O
order:O
was:O
for:O
50:O
tanks:O
;:O
65:O
had:O
been:O
built:O
by:O
mid:O
1939:O
.:O