With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
They
seem
to
have
been
appointed
during
times
of
crisis
.
They:O
seem:O
to:O
have:O
been:O
appointed:O
during:O
times:O
of:O
crisis:O
.:O