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 ":".
This
ironclad
belief
rendered
Nicholas
unwilling
to
allow
the
progressive
reforms
that
might
have
alleviated
the
suffering
of
the
Russian
people
.
This:O
ironclad:O
belief:O
rendered:O
Nicholas:person-politician
unwilling:O
to:O
allow:O
the:O
progressive:O
reforms:O
that:O
might:O
have:O
alleviated:O
the:O
suffering:O
of:O
the:O
Russian:location-GPE
people:O
.:O