With no explanation, label each line with "O", "other-astronomything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
one
of
the
closest
Super-Earths
known
,
the
closest
discovered
to
date
(
)
within
a
multiple
star
system
.
It:O
is:O
one:O
of:O
the:O
closest:O
Super-Earths:other-astronomything
known:O
,:O
the:O
closest:O
discovered:O
to:O
date:O
(:O
):O
within:O
a:O
multiple:O
star:O
system:O
.:O