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 ":".
This
enzyme
belongs
to
the
family
of
glycosyltransferases
,
specifically
the
hexosyltransferases
.
This:O
enzyme:O
belongs:O
to:O
the:O
family:O
of:O
glycosyltransferases:O
,:O
specifically:O
the:O
hexosyltransferases:O
.:O