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 ":".
Members
of
the
breed
were
difficult
to
train
,
but
formed
a
strong
attachment
with
their
owners
and
were
useful
for
hunting
both
on
land
and
in
water
.
Members:O
of:O
the:O
breed:O
were:O
difficult:O
to:O
train:O
,:O
but:O
formed:O
a:O
strong:O
attachment:O
with:O
their:O
owners:O
and:O
were:O
useful:O
for:O
hunting:O
both:O
on:O
land:O
and:O
in:O
water:O
.:O