With no explanation, label each line with "location-GPE", "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Fexofenadine
was
originally
synthesized
in
1993
by
Massachusetts
-based
biotechnology
company
Sepracor
,
which
then
sold
the
development
rights
to
Hoechst
Marion
Roussel
(
now
part
of
Sanofi-Aventis
)
,
and
was
later
approved
by
the
U.S.
Food
and
Drug
Administration
(
FDA
)
in
1996
.
Fexofenadine:other-chemicalthing
was:O
originally:O
synthesized:O
in:O
1993:O
by:O
Massachusetts:location-GPE
-based:O
biotechnology:O
company:O
Sepracor:O
,:O
which:O
then:O
sold:O
the:O
development:O
rights:O
to:O
Hoechst:O
Marion:O
Roussel:O
(:O
now:O
part:O
of:O
Sanofi-Aventis:O
):O
,:O
and:O
was:O
later:O
approved:O
by:O
the:O
U.S.:O
Food:O
and:O
Drug:O
Administration:O
(:O
FDA:O
):O
in:O
1996:O
.:O