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 ":".
Nicotinamide
riboside
(
NR
)
and
nicotinamide
mononucleotide
(
NMN
)
are
NAD+
precursors
,
but
when
NR
or
NMN
are
administered
,
CD38
can
degrade
these
precursors
before
they
can
enter
cells
.
Nicotinamide:other-biologything
riboside:other-biologything
(:O
NR:other-biologything
):O
and:O
nicotinamide:other-biologything
mononucleotide:other-biologything
(:O
NMN:other-biologything
):O
are:O
NAD+:other-biologything
precursors:O
,:O
but:O
when:O
NR:other-biologything
or:O
NMN:other-biologything
are:O
administered:O
,:O
CD38:other-biologything
can:O
degrade:O
these:O
precursors:O
before:O
they:O
can:O
enter:O
cells:O
.:O