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 ":".
The
solution
can
furthermore
be
used
in
the
production
of
potash
and
potassium
salts
.
The:O
solution:O
can:O
furthermore:O
be:O
used:O
in:O
the:O
production:O
of:O
potash:other-chemicalthing
and:O
potassium:other-chemicalthing
salts:other-chemicalthing
.:O