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 ":".
Nylon
was
considered
a
“
godsend
to
the
Ammonia
Department
”
,
which
had
been
in
financial
difficulties
.
Nylon:other-chemicalthing
was:O
considered:O
a:O
“:O
godsend:O
to:O
the:O
Ammonia:other-chemicalthing
Department:O
”:O
,:O
which:O
had:O
been:O
in:O
financial:O
difficulties:O
.:O