With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
They
are
thought
to
interact
with
the
receptor
in
an
allosteric
manner
locking
the
receptor
in
a
conformation
that
prohibits
its
co-receptor
function
.
They:O
are:O
thought:O
to:O
interact:O
with:O
the:O
receptor:O
in:O
an:O
allosteric:O
manner:O
locking:O
the:O
receptor:O
in:O
a:O
conformation:O
that:O
prohibits:O
its:O
co-receptor:O
function:O
.:O