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 ":".
While
Greek
fire
remained
a
potent
weapon
,
its
limitations
were
significant
when
compared
to
more
traditional
forms
of
artillery
:
in
its
``
siphōn
''
-deployed
version
,
it
had
a
limited
range
,
and
it
could
be
used
safely
only
in
a
calm
sea
and
with
favourable
wind
conditions
.
While:O
Greek:location-GPE
fire:O
remained:O
a:O
potent:O
weapon:O
,:O
its:O
limitations:O
were:O
significant:O
when:O
compared:O
to:O
more:O
traditional:O
forms:O
of:O
artillery:O
::O
in:O
its:O
``:O
siphōn:O
'':O
-deployed:O
version:O
,:O
it:O
had:O
a:O
limited:O
range:O
,:O
and:O
it:O
could:O
be:O
used:O
safely:O
only:O
in:O
a:O
calm:O
sea:O
and:O
with:O
favourable:O
wind:O
conditions:O
.:O