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 ":".
The
Persian
ruler
Nadir
Shah
quickly
took
Alexander
's
side
and
protested
to
the
Ottoman
government
.
The:O
Persian:location-GPE
ruler:O
Nadir:person-politician
Shah:person-politician
quickly:O
took:O
Alexander:person-politician
's:O
side:O
and:O
protested:O
to:O
the:O
Ottoman:location-GPE
government:O
.:O