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 ":".
Scene
Four
begins
with
Beppo
trying
to
reveal
his
secret
,
but
Nemorino
interrupts
him
.
Scene:O
Four:O
begins:O
with:O
Beppo:person-other
trying:O
to:O
reveal:O
his:O
secret:O
,:O
but:O
Nemorino:person-other
interrupts:O
him:O
.:O