Assertion: peptic ulcer | /r/HasProperty | an area of damage
Facets:
Source sentences:
text: A peptic ulcer is an area of damage to the inner lining of the stomach, esophagus, or duodenum (the first part of the small intestine).
text: A peptic ulcer is an area of damage to the inner lining (the mucosa) of the stomach or the upper part of the intestine (duodenum).