With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
formation
of
an
antithrombin-protease
complex
involves
an
interaction
between
the
protease
and
a
specific
reactive
peptide
bond
within
antithrombin
.
The:O
formation:O
of:O
an:O
antithrombin-protease:other-biologything
complex:other-biologything
involves:O
an:O
interaction:O
between:O
the:O
protease:other-biologything
and:O
a:O
specific:O
reactive:O
peptide:O
bond:O
within:O
antithrombin:other-biologything
.:O