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 ":".
When
DNA
is
damaged
by
ultra-violet
radiation
or
chemicals
,
the
SUMO
molecule
that
is
attached
to
a
lysine
residue
is
replaced
by
ubiquitin
.
When:O
DNA:other-biologything
is:O
damaged:O
by:O
ultra-violet:O
radiation:O
or:O
chemicals:O
,:O
the:O
SUMO:other-biologything
molecule:O
that:O
is:O
attached:O
to:O
a:O
lysine:O
residue:O
is:O
replaced:O
by:O
ubiquitin:other-biologything
.:O