Assertion: lignin's use | /r/HasSubevent | a 10% reduction
Facets:
value: because of numerous technical difficulties
type: CAUSE
Source sentences:
text: However, because of numerous technical difficulties, use of their demethylated lignin led to only about a 10% reduction in the phenol requirement in the adhesive.
text: However, because of numerous technical difficulties, use of their demethylated lignin led to only about a 10% reduction in the phenol requirement in the adhesive.