With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Small
molecule
antagonists
of
CCR5
bind
to
a
hydrophobic
pocket
formed
by
the
transmembrane
helices
of
the
CCR5
receptor
.
Small:O
molecule:O
antagonists:O
of:O
CCR5:other-biologything
bind:O
to:O
a:O
hydrophobic:O
pocket:O
formed:O
by:O
the:O
transmembrane:O
helices:O
of:O
the:O
CCR5:other-biologything
receptor:O
.:O