Assertion: charter | /r/CapableOf | grow into national movement
Facets:
value: according to federal figures
type: OTHER
value: since
type: TEMPORAL
Source sentences:
text: Conceived over 25 years ago in Minnesota as a means to loosen red tape around public schools and free up educators to innovate, charters have since grown into a national movement that spans 44 states plus the District of Columbia, and includes around 7,000 schools and 3 million students, according to federal figures.