With no explanation, label each line with "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Using
caffeine
and
naps
before
night
shifts
can
decrease
sleepiness
.
Using:O
caffeine:other-medical
and:O
naps:O
before:O
night:O
shifts:O
can:O
decrease:O
sleepiness:O
.:O