With no explanation, label each line with "O", "other-chemicalthing", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
This
reaction
allows
for
hydrogen
peroxide
created
by
radiolysis
of
water
to
diffuse
to
the
nucleus
and
react
with
Iron
(
II
)
to
produce
hydroxyl
radicals
,
which
in
turn
react
with
DNA
.
This:O
reaction:O
allows:O
for:O
hydrogen:other-chemicalthing
peroxide:other-chemicalthing
created:O
by:O
radiolysis:O
of:O
water:O
to:O
diffuse:O
to:O
the:O
nucleus:O
and:O
react:O
with:O
Iron:other-chemicalthing
(:other-chemicalthing
II:other-chemicalthing
):other-chemicalthing
to:O
produce:O
hydroxyl:other-chemicalthing
radicals:O
,:O
which:O
in:O
turn:O
react:O
with:O
DNA:other-biologything
.:O