With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
He
astounded
associates
by
working
hard
right
to
the
end
and
``
never
relaxing
his
grip
.
''
He:O
astounded:O
associates:O
by:O
working:O
hard:O
right:O
to:O
the:O
end:O
and:O
``:O
never:O
relaxing:O
his:O
grip:O
.:O
'':O