Assertion: chronic obstructive pulmonary disease | /r/HasProperty | emphysema
Facets:
Source sentences:
text: However, chronic obstructive pulmonary disease (COPD), emphysema and chronic bronchitis fall into the obstructive lung disease category.
text: There are two primary subtypes of chronic obstructive pulmonary disease: emphysema and chronic bronchitis.
text: COPD is an umbrella term, as there are two primary subtypes of chronic obstructive pulmonary disease: emphysema and chronic bronchitis.