With no explanation, label each line with "O", "other-chemicalthing", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
reactants
of
nylon
soon
constituted
half
of
the
Ammonia
department
's
sales
and
helped
them
come
out
of
the
period
of
the
Great
Depression
by
creating
jobs
and
revenue
at
DuPont
.
The:O
reactants:O
of:O
nylon:O
soon:O
constituted:O
half:O
of:O
the:O
Ammonia:other-chemicalthing
department:O
's:O
sales:O
and:O
helped:O
them:O
come:O
out:O
of:O
the:O
period:O
of:O
the:O
Great:O
Depression:O
by:O
creating:O
jobs:O
and:O
revenue:O
at:O
DuPont:organization-company
.:O