Assertion: olive's oil | /r/HasProperty | classified into five grades
Facets:
Source sentences:
text: Olive oil is classified into five grades: (1) virgin, from first pressings that meet defined standards; (2) pure, or edible, a mixture of refined and virgin; (3) refined, or commercial, consisting of lampante from which acid, colour, and odour have been removed; (4) lampante, high-acid oil, named for its use as a lamp fuel, obtained from a second pressing of residual pulp with hot water (some inferior virgin oils are classed as lampante); and (5) sulfide, extracted with solvents and refined repeatedly.