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 ":".
It
is
the
first
prosthesis
to
feature
an
electronically
actuated
thumb
which
mimics
natural
human
hand
movements
.
It:O
is:O
the:O
first:O
prosthesis:O
to:O
feature:O
an:O
electronically:O
actuated:O
thumb:O
which:O
mimics:O
natural:O
human:O
hand:O
movements:O
.:O