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 ":".
These
acids
are
very
strong
,
reflecting
their
tendency
to
ionize
in
aqueous
solution
yielding
hydronium
ions
(
H3O+
)
.
These:O
acids:O
are:O
very:O
strong:O
,:O
reflecting:O
their:O
tendency:O
to:O
ionize:O
in:O
aqueous:O
solution:O
yielding:O
hydronium:other-chemicalthing
ions:other-chemicalthing
(:O
H3O+:other-chemicalthing
):O
.:O