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 ":".
In
April
2011
,
``
''
—a
stand-alone
version
of
the
popular
Microscope
Puzzle
from
the
original
``
7th
Guest
``
—was
released
for
iPad
.
In:O
April:O
2011:O
,:O
``:O
'':O
—a:O
stand-alone:O
version:O
of:O
the:O
popular:O
Microscope:O
Puzzle:O
from:O
the:O
original:O
``:O
7th:product-other
Guest:product-other
``:O
—was:O
released:O
for:O
iPad:product-other
.:O