With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Two
Presidents
of
the
United
States
—
John
F.
Kennedy
during
the
1960
presidential
election
and
Donald
Trump
during
the
2020
presidential
election
—
have
visited
the
town
during
their
campaigns
.
Two:O
Presidents:O
of:O
the:O
United:location-GPE
States:location-GPE
—:O
John:person-politician
F.:person-politician
Kennedy:person-politician
during:O
the:O
1960:O
presidential:O
election:O
and:O
Donald:person-politician
Trump:person-politician
during:O
the:O
2020:O
presidential:O
election:O
—:O
have:O
visited:O
the:O
town:O
during:O
their:O
campaigns:O
.:O