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 ":".
Initially
,
the
activation
of
Wnt
/
beta-catenin
is
essential
for
committing
mesenchymal
cells
to
a
cardiac
lineage
;
however
,
in
later
stages
of
development
,
the
downregulation
of
beta-catenin
is
required
.
Initially:O
,:O
the:O
activation:O
of:O
Wnt:other-biologything
/:O
beta-catenin:other-biologything
is:O
essential:O
for:O
committing:O
mesenchymal:other-biologything
cells:other-biologything
to:O
a:O
cardiac:O
lineage:O
;:O
however:O
,:O
in:O
later:O
stages:O
of:O
development:O
,:O
the:O
downregulation:O
of:O
beta-catenin:other-biologything
is:O
required:O
.:O