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 ":".
It
was
fought
on
24
September
(
Julian
calendar
)
or
4
October
(
Gregorian
calendar
)
1636
.
It:O
was:O
fought:O
on:O
24:O
September:O
(:O
Julian:O
calendar:O
):O
or:O
4:O
October:O
(:O
Gregorian:O
calendar:O
):O
1636:O
.:O