With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
series
of
studies
culminated
in
the
Winter
Haze
Intensive
Tracer
Experiment
(
WHITEX
)
and
the
Navajo
Generating
Station
Visibility
Study
(
NGSVS
)
.
The:O
series:O
of:O
studies:O
culminated:O
in:O
the:O
Winter:product-other
Haze:product-other
Intensive:product-other
Tracer:product-other
Experiment:product-other
(:O
WHITEX:product-other
):O
and:O
the:O
Navajo:product-other
Generating:product-other
Station:product-other
Visibility:product-other
Study:product-other
(:O
NGSVS:product-other
):O
.:O