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 ":".
It
was
introduced
in
1950
's
into
the
United
States
,
in
Watertown
,
New
York
.
It:O
was:O
introduced:O
in:O
1950:O
's:O
into:O
the:O
United:location-GPE
States:location-GPE
,:O
in:O
Watertown:location-GPE
,:O
New:location-GPE
York:location-GPE
.:O