Assertion: lignin's structure | /r/HasProperty | variable
Facets:
value: highly
type: DEGREE
Source sentences:
text: The exact structure and composition of a lignin-based bio-oil is highly variable, depending on the biomass resource (tree, crop residue, grass, etc.), lignin type (Kraft, Organosolv, etc.), and depolymerization route (enzymatic, catalytic, etc.), among other factors.(12-17)