With no explanation, label each line with "location-GPE", "O", "building-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
May
1986
,
two
men
parachuted
off
the
roof
of
the
tower
before
being
arrested
by
Pittsburgh
Police
near
the
Civic
Arena
.
In:O
May:O
1986:O
,:O
two:O
men:O
parachuted:O
off:O
the:O
roof:O
of:O
the:O
tower:O
before:O
being:O
arrested:O
by:O
Pittsburgh:location-GPE
Police:O
near:O
the:O
Civic:building-other
Arena:building-other
.:O