Assertion: lignin's unit | /r/HasProperty | vanholme et al
Facets:
Source sentences:
text: Variations on lignin monomer are due to methoxylation of the hydroxylcinnamyl alcohol in the C3 and C5 positions; resulting in the formation of monolignols that originate the guaiacyl (G), syringyl (S) and p-hydroxyphenyl (H) units (Vanholme et al. 2010)