Assertion: heart murmur | /r/HasProperty | grade
Facets:
value: by the time
type: TEMPORAL
value: from levels
type: OTHER
value: typically
type: DEGREE
Source sentences:
text: They are most commonly found in young dogs and are typically a grade III or less.
text: A heart murmur can be graded from levels one to six, with grade one being the least severe, soft and only audible under specific conditions while grade six is when the disturbance is audible even without the stethoscope (10).
text: By the time a heart murmur is grade five or six, the murmur is so pronounced that experts can detect it simply by feeling a dog's heart rhythm through the chest.