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 ":".
Spring
and
fall
days
usually
reach
the
low-to-mid
70s
°F
(
low
20s
°C
)
,
with
lows
at
night
in
the
lower
50s
°F
(
10
to
14
°C
)
.
Spring:O
and:O
fall:O
days:O
usually:O
reach:O
the:O
low-to-mid:O
70s:O
°F:O
(:O
low:O
20s:O
°C:O
):O
,:O
with:O
lows:O
at:O
night:O
in:O
the:O
lower:O
50s:O
°F:O
(:O
10:O
to:O
14:O
°C:O
):O
.:O