Assertion: red line | /r/Synonym | the north-south line
Facets:
value: sometimes
type: TEMPORAL
value: originally
type: OTHER
Source sentences:
text: The Red Line was originally called the North-South Line until MARTA switched to a color-based naming system in October 2009.
text: The Red Line, sometimes known as the Howard–Dan Ryan Line or the North–South Line, is a rapid transit line in Chicago, run by the Chicago Transit Authority (CTA) as part of the Chicago "L" system.