With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Iran
built
a
heavily
upgraded
version
of
this
class
called
the
``
Sina
''
class
.
Iran:location-GPE
built:O
a:O
heavily:O
upgraded:O
version:O
of:O
this:O
class:O
called:O
the:O
``:O
Sina:O
'':O
class:O
.:O