With no explanation, label each line with "location-GPE", "O", "event-attack/battle/war/militaryconflict", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
In
1914
he
became
Rector
of
the
Royal
High
School
,
Edinburgh
and
saw
it
through
the
losses
of
the
First
World
War
.
In:O
1914:O
he:O
became:O
Rector:O
of:O
the:O
Royal:organization-education
High:organization-education
School:organization-education
,:O
Edinburgh:location-GPE
and:O
saw:O
it:O
through:O
the:O
losses:O
of:O
the:O
First:event-attack/battle/war/militaryconflict
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
.:O