With no explanation, label each line with "O", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
information
is
based
on
an
1835
study
by
the
Swedish
historian
A.M.
Strinnholm
as
well
as
the
1815
study
by
the
Russian
historian
Nikolay
Karamzin
.
This:O
information:O
is:O
based:O
on:O
an:O
1835:O
study:O
by:O
the:O
Swedish:O
historian:O
A.M.:person-scholar
Strinnholm:person-scholar
as:O
well:O
as:O
the:O
1815:O
study:O
by:O
the:O
Russian:O
historian:O
Nikolay:person-scholar
Karamzin:person-scholar
.:O