With no explanation, label each line with "location-GPE", "O", "building-airport", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-hospital" preceded by ":".
It
is
commonly
referred
to
as
``
Ciampino
Airport
``
,
as
it
is
located
beside
Ciampino
,
south-east
of
Rome
.
It:O
is:O
commonly:O
referred:O
to:O
as:O
``:O
Ciampino:building-airport
Airport:building-airport
``:O
,:O
as:O
it:O
is:O
located:O
beside:O
Ciampino:location-GPE
,:O
south-east:O
of:O
Rome:location-GPE
.:O