With no explanation, label each line with "O", "other-chemicalthing", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
drug
was
originally
thought
to
function
as
a
kinase
inhibitor
but
was
subsequently
shown
to
be
an
Hsp90
inhibitor
where
it
uses
a
compact
conformation
to
insert
itself
into
the
ATP
binding
site
.
The:O
drug:O
was:O
originally:O
thought:O
to:O
function:O
as:O
a:O
kinase:other-medical
inhibitor:other-medical
but:O
was:O
subsequently:O
shown:O
to:O
be:O
an:O
Hsp90:other-medical
inhibitor:other-medical
where:O
it:O
uses:O
a:O
compact:O
conformation:O
to:O
insert:O
itself:O
into:O
the:O
ATP:other-chemicalthing
binding:O
site:O
.:O