With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
His
relationship
to
Gustav
IV
Adolf
was
cordial
though
never
close
,
and
he
was
not
entrusted
with
much
responsibility
during
the
rule
of
his
nephew
.
His:O
relationship:O
to:O
Gustav:person-other
IV:person-other
Adolf:person-other
was:O
cordial:O
though:O
never:O
close:O
,:O
and:O
he:O
was:O
not:O
entrusted:O
with:O
much:O
responsibility:O
during:O
the:O
rule:O
of:O
his:O
nephew:O
.:O