With no explanation, label each line with "location-GPE", "O", "person-soldier", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
When
the
Aragonese
troops
were
left
under
siege
in
Naples
,
he
changed
sides
again
,
winning
the
title
of
``
gran
connestabile
''
from
Queen
Joan
,
and
serving
as
assistant
to
the
Kingdom
's
commander-in-chief
Muzio
Attendolo
Sforza
.
When:O
the:O
Aragonese:location-GPE
troops:O
were:O
left:O
under:O
siege:O
in:O
Naples:location-GPE
,:O
he:O
changed:O
sides:O
again:O
,:O
winning:O
the:O
title:O
of:O
``:O
gran:O
connestabile:O
'':O
from:O
Queen:O
Joan:O
,:O
and:O
serving:O
as:O
assistant:O
to:O
the:O
Kingdom:O
's:O
commander-in-chief:O
Muzio:person-soldier
Attendolo:person-soldier
Sforza:person-soldier
.:O