With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Chuck
later
suspected
the
codename
of
being
an
acronym
.
Chuck:person-other
later:O
suspected:O
the:O
codename:O
of:O
being:O
an:O
acronym:O
.:O