With no explanation, label each line with "O", "event-other", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Hirschman
continues
his
work
supporting
the
literary
community
and
is
the
key
organizer
for
the
now
biennial
San
Francisco
International
Poetry
Festival
.
Hirschman:person-scholar
continues:O
his:O
work:O
supporting:O
the:O
literary:O
community:O
and:O
is:O
the:O
key:O
organizer:O
for:O
the:O
now:O
biennial:O
San:event-other
Francisco:event-other
International:event-other
Poetry:event-other
Festival:event-other
.:O