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 ":".
Protein
A
is
anchored
to
staphylococcal
peptidoglycan
pentaglycine
bridges
(
chains
of
five
glycine
residues
)
by
the
transpeptidase
sortase
A
.
Protein:other-biologything
A:other-biologything
is:O
anchored:O
to:O
staphylococcal:O
peptidoglycan:O
pentaglycine:O
bridges:O
(:O
chains:O
of:O
five:O
glycine:O
residues:O
):O
by:O
the:O
transpeptidase:O
sortase:other-biologything
A:other-biologything
.:O