With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
first
event
occurred
while
Cheng
Yen
was
visiting
a
hospital
in
Fenglin
.
The:O
first:O
event:O
occurred:O
while:O
Cheng:person-other
Yen:person-other
was:O
visiting:O
a:O
hospital:O
in:O
Fenglin:location-GPE
.:O