Assertion: metro's line | /r/HasProperty | referred by their numbers
Facets:
value: colloquially
type: MANNER
value: rarely
type: DEGREE
Source sentences:
text: Colloquially, lines are rarely referred by their full names, but rather by their numbers or colors, e.g. "Syretsko–Pecherska line" is usually referred as "The Third line" or "The Green line".