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 ":".
Its
high
polarity
,
which
results
from
the
dipolar
phosphorus-oxygen
bond
,
allows
this
compound
to
bind
to
metal
ions
.
Its:O
high:O
polarity:O
,:O
which:O
results:O
from:O
the:O
dipolar:O
phosphorus-oxygen:O
bond:O
,:O
allows:O
this:O
compound:O
to:O
bind:O
to:O
metal:O
ions:O
.:O