Assertion: sunspot | /r/CapableOf | undergo cyclical change
Facets:
Source sentences:
text: Sunspots are the most obvious but by no means the only manifestation of solar activity to undergo a cyclical change over a period of around 11 years.
text: Sunspots are the most obvious but by no means the only manifestation of solar activity to undergo a cyclical change over a period of around 11 years.