With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Following
this
success
,
he
again
visited
Constantinople
,
and
obtained
from
the
new
Ottoman
ruler
Murad
III
an
agreement
to
help
him
militarily
regain
the
Moroccan
throne
.
Following:O
this:O
success:O
,:O
he:O
again:O
visited:O
Constantinople:location-GPE
,:O
and:O
obtained:O
from:O
the:O
new:O
Ottoman:O
ruler:O
Murad:person-politician
III:person-politician
an:O
agreement:O
to:O
help:O
him:O
militarily:O
regain:O
the:O
Moroccan:location-GPE
throne:O
.:O