With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
amalgamated
aluminium
then
is
oxidized
by
water
,
converting
the
aluminium
to
aluminium
hydroxide
and
releasing
free
metallic
mercury
.
The:O
amalgamated:O
aluminium:O
then:O
is:O
oxidized:O
by:O
water:O
,:O
converting:O
the:O
aluminium:O
to:O
aluminium:O
hydroxide:O
and:O
releasing:O
free:O
metallic:O
mercury:O
.:O