Assertion: ulcer's cause | /r/RelatedTo | stress
Facets:
value: usually
type: DEGREE
Source sentences:
text: These lesions are somewhat of a mystery as to why some people get them, but usually the cause could be related to stress, a slight injury to the soft tissues in the mouth, dentures that don't fit properly, braces can contribute to this, as well as eating highly acidic foods such as oranges, strawberries and tomatoes and nutritional deficiencies.