With no explanation, label each line with "other-livingthing", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
popularity
of
horse
meat
as
dog
food
became
so
popular
that
by
the
1930s
,
over
50,000
horses
were
bred
and
slaughtered
each
year
to
keep
up
with
this
specific
demand
.
The:O
popularity:O
of:O
horse:other-livingthing
meat:O
as:O
dog:other-livingthing
food:O
became:O
so:O
popular:O
that:O
by:O
the:O
1930s:O
,:O
over:O
50,000:O
horses:other-livingthing
were:O
bred:O
and:O
slaughtered:O
each:O
year:O
to:O
keep:O
up:O
with:O
this:O
specific:O
demand:O
.:O