Assertion: mockingbird | /r/CapableOf | begin changes
Facets:
value: to the left side
type: OTHER
value: for the portion of the sweep
type: OTHER
Source sentences:
text: The timing of airflow through each side of the syrinx shows that the mockingbird begins each sweep on the right side and changes to the left side for the portion of the sweep that is below about 3 kHz.