With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
appearance
of
the
lounge
subculture
in
the
mid-1990s
in
the
United
States
helped
to
enhance
the
revival
and
interest
in
the
music
,
style
,
and
performers
of
popular
music
before
rock
and
roll
.
The:O
appearance:O
of:O
the:O
lounge:O
subculture:O
in:O
the:O
mid-1990s:O
in:O
the:O
United:location-GPE
States:location-GPE
helped:O
to:O
enhance:O
the:O
revival:O
and:O
interest:O
in:O
the:O
music:O
,:O
style:O
,:O
and:O
performers:O
of:O
popular:O
music:O
before:O
rock:O
and:O
roll:O
.:O