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 ":".
Each
orbit
of
the
planet
takes
about
100
years
.
Each:O
orbit:O
of:O
the:O
planet:O
takes:O
about:O
100:O
years:O
.:O