With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Not
until
the
1997
Mars
Pathfinder
was
another
remote-controlled
vehicle
put
on
an
extraterrestrial
body
.
Not:O
until:O
the:O
1997:O
Mars:product-other
Pathfinder:product-other
was:O
another:O
remote-controlled:O
vehicle:O
put:O
on:O
an:O
extraterrestrial:O
body:O
.:O