Assertion: spearmint's oil | /r/CapableOf | yield 40 to 45 per cent free menthol
Facets:
Source sentences:
text: Hungarian oil yielding 43 to 56 per cent of free menthol, and 35 to 65 per cent of total menthol; while American oil yields 40 to 45 per cent free menthol and 60 per cent total menthol.