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 ":".
The
months
May
through
June
offer
the
most
favorable
weather
for
climbing
.
The:O
months:O
May:O
through:O
June:O
offer:O
the:O
most:O
favorable:O
weather:O
for:O
climbing:O
.:O