Assertion: heart murmur's symptom | /r/HasProperty | low-tolerance
Facets:
value: for exercise
type: PURPOSE
Source sentences:
text: In addition to a heart murmur, the most common symptoms of this type of heart disease in dogs are lethargy and a low-tolerance for exercise (your dog may breathe very rapidly, pant excessively or have difficulty standing after exercise) and have a persistent cough.