Assertion: peppered moth | /r/CapableOf | become common
Facets:
value: with improved environmental standards
type: OTHER
value: with an improved environment
type: CAUSE
Source sentences:
text: Since then, with an improved environment, light-coloured peppered moths have again become common.
text: Since then, with improved environmental standards, light-coloured peppered moths have again become common, and the dramatic change in the peppered moth's population has remained a subject of much interest and study.