With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Bis
(
cyclooctadiene
)
nickel
(
0
)
is
the
organonickel
compound
with
the
formula
Ni
(
C8H12
)
2
,
also
written
Ni
(
cod
)
2
.
Bis:other-chemicalthing
(:other-chemicalthing
cyclooctadiene:other-chemicalthing
):other-chemicalthing
nickel:other-chemicalthing
(:other-chemicalthing
0:other-chemicalthing
):other-chemicalthing
is:O
the:O
organonickel:other-chemicalthing
compound:O
with:O
the:O
formula:O
Ni:other-chemicalthing
(:other-chemicalthing
C8H12:other-chemicalthing
):other-chemicalthing
2:other-chemicalthing
,:O
also:O
written:O
Ni:other-chemicalthing
(:other-chemicalthing
cod:other-chemicalthing
):other-chemicalthing
2:other-chemicalthing
.:O