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 ":".
Because
of
this
,
lysine
methylation
tends
to
be
a
very
informative
mark
and
dominates
the
known
histone
modification
functions
.
Because:O
of:O
this:O
,:O
lysine:O
methylation:O
tends:O
to:O
be:O
a:O
very:O
informative:O
mark:O
and:O
dominates:O
the:O
known:O
histone:O
modification:O
functions:O
.:O