Line 2 (Beijing Subway)
History
Table:
Segment
Commencement
Length
Station(s)
Name

Fuxingmen — Jianguomen

20 September 1984

16.1 km (10.00 mi)

12

Phase 2 (initial section)

Fuxingmen — Changchunjie

28 December 1987

1.2 km (0.75 mi)

1

Line 1 & 2 realignment project

Beijing Railway Station — Jianguomen

1.0 km (0.62 mi)

1

Changchunjie — Beijing Railway Station

6.1 km (3.79 mi)

6

Considering the tabular data covering 'Line 2 (Beijing Subway)', section 'History', formulate a single-sentence overview of the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.