With no explanation, label each line with "location-GPE", "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
According
to
a
2020
study
in
the
United
States
,
coffee
is
the
major
source
of
caffeine
intake
in
middle-aged
adults
,
while
soft
drinks
and
tea
are
the
major
sources
in
adolescents
.
According:O
to:O
a:O
2020:O
study:O
in:O
the:O
United:location-GPE
States:location-GPE
,:O
coffee:O
is:O
the:O
major:O
source:O
of:O
caffeine:other-chemicalthing
intake:O
in:O
middle-aged:O
adults:O
,:O
while:O
soft:O
drinks:O
and:O
tea:O
are:O
the:O
major:O
sources:O
in:O
adolescents:O
.:O