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 ":".
The
chemokines
CCL5
/
RANTES
,
CCL3
/
MIP-1α
,
CCL4
/
MIP-1β
,
all
of
which
bind
to
CCR5
,
are
inhibitory
to
HIV-1
replication
in
microglial
cells
,
apparently
by
their
ability
to
block
viral
entry
.
''
The:O
chemokines:O
CCL5:other-biologything
/:O
RANTES:other-biologything
,:O
CCL3:other-biologything
/:O
MIP-1α:other-biologything
,:O
CCL4:other-biologything
/:O
MIP-1β:other-biologything
,:O
all:O
of:O
which:O
bind:O
to:O
CCR5:other-biologything
,:O
are:O
inhibitory:O
to:O
HIV-1:other-biologything
replication:O
in:O
microglial:O
cells:O
,:O
apparently:O
by:O
their:O
ability:O
to:O
block:O
viral:O
entry:O
.:O
'':O