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
currently
unknown
whether
the
planet
is
a
gas
giant
like
Uranus
or
Neptune
,
or
has
terrestrial
composition
like
CoRoT-7
b
.
It:O
is:O
currently:O
unknown:O
whether:O
the:O
planet:O
is:O
a:O
gas:O
giant:O
like:O
Uranus:other-astronomything
or:O
Neptune:other-astronomything
,:O
or:O
has:O
terrestrial:O
composition:O
like:O
CoRoT-7:other-astronomything
b:other-astronomything
.:O