With no explanation, label each line with "location-GPE", "O", "building-other", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
It
forms
a
part
of
probably
the
most
famous
ensemble
of
Romanesque
architecture
in
Italy
in
the
``
Piazza
dei
Miracoli
``
,
looking
at
the
Leaning
Tower
of
Pisa
with
the
Baptistry
behind
it
.
It:O
forms:O
a:O
part:O
of:O
probably:O
the:O
most:O
famous:O
ensemble:O
of:O
Romanesque:location-GPE
architecture:O
in:O
Italy:location-GPE
in:O
the:O
``:O
Piazza:location-other
dei:location-other
Miracoli:location-other
``:O
,:O
looking:O
at:O
the:O
Leaning:building-other
Tower:building-other
of:building-other
Pisa:building-other
with:O
the:O
Baptistry:building-other
behind:O
it:O
.:O