With no explanation, label each line with "location-GPE", "O", "organization-government/governmentagency", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Barrett
served
in
the
State
Senate
once
before
,
in
1987–1994
,
representing
another
district
(
Cambridge
,
Belmont
,
Watertown
and
the
Allston-Brighton
neighborhood
of
Boston
)
,
before
moving
to
his
present
home
in
suburban
Lexington
17
years
ago
.
Barrett:person-politician
served:O
in:O
the:O
State:organization-government/governmentagency
Senate:organization-government/governmentagency
once:O
before:O
,:O
in:O
1987–1994:O
,:O
representing:O
another:O
district:O
(:O
Cambridge:location-GPE
,:O
Belmont:location-GPE
,:O
Watertown:location-GPE
and:O
the:O
Allston-Brighton:location-GPE
neighborhood:O
of:O
Boston:location-GPE
):O
,:O
before:O
moving:O
to:O
his:O
present:O
home:O
in:O
suburban:O
Lexington:location-GPE
17:O
years:O
ago:O
.:O