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 ":".
They
featured
a
mobile
thermistor
sensor
that
could
be
moved
to
any
depth
on
the
tower
as
well
as
fixed
thermometers
at
various
depths
and
were
intended
to
montor
the
temperatures
of
different
water
layers
in
the
lake
.
They:O
featured:O
a:O
mobile:O
thermistor:O
sensor:O
that:O
could:O
be:O
moved:O
to:O
any:O
depth:O
on:O
the:O
tower:O
as:O
well:O
as:O
fixed:O
thermometers:O
at:O
various:O
depths:O
and:O
were:O
intended:O
to:O
montor:O
the:O
temperatures:O
of:O
different:O
water:O
layers:O
in:O
the:O
lake:O
.:O