With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
the
centre
of
the
expansion
was
the
Ceylon
Light
Infantry
which
grew
by
1946
from
one
to
five
battalions
.
At:O
the:O
centre:O
of:O
the:O
expansion:O
was:O
the:O
Ceylon:organization-other
Light:organization-other
Infantry:organization-other
which:O
grew:O
by:O
1946:O
from:O
one:O
to:O
five:O
battalions:O
.:O