With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
for
research
in
quantum
chemistry
,
he
joined
the
research
staff
of
the
British
Rubber
Producers
Research
Association
.
for:O
research:O
in:O
quantum:O
chemistry:O
,:O
he:O
joined:O
the:O
research:O
staff:O
of:O
the:O
British:organization-other
Rubber:organization-other
Producers:organization-other
Research:organization-other
Association:organization-other
.:O