With no explanation, label each line with "O", "person-politician", "location-GPE", "organization-education", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
While
at
Cambridge
Broughton
became
good
friends
with
Lord
Byron
,
who
accompanied
him
on
a
tour
in
Spain
,
Greece
and
Turkey
in
1809
.
While:O
at:O
Cambridge:organization-education
Broughton:person-other
became:O
good:O
friends:O
with:O
Lord:O
Byron:person-politician
,:O
who:O
accompanied:O
him:O
on:O
a:O
tour:O
in:O
Spain:location-GPE
,:O
Greece:location-GPE
and:O
Turkey:location-GPE
in:O
1809:O
.:O