Assertion: ulcer's type | /r/HasProperty | gastric
Facets:
Source sentences:
text: The types of peptic ulcers are gastric and duodenal, both of which are chronic diseases.
text: There are three types of peptic ulcers: gastric ulcers : ulcers that develop inside the stomach
text: The two most common types of peptic ulcer are called “gastric ulcers” and “duodenal ulcers”.