preferred_name: The keratan chain can be capped by N-acetylneuraminic acid (Sus scrofa)
preferred_name_lc: the keratan chain can be capped by n-acetylneuraminic acid (sus scrofa)
label: The keratan chain can be capped by N-acetylneuraminic acid (Sus scrofa)
label_lc: the keratan chain can be capped by n-acetylneuraminic acid (sus scrofa)