Dorchester Extension of the Cambridge–Dorchester subway

Target entity: Dorchester Extension of the Cambridge–Dorchester subway
Context triple: [Broadway–South Boston station, partOf, Dorchester Extension of the Cambridge–Dorchester subway]

• A. Jubilee line extension
  The Jubilee line extension is a major late-20th-century expansion of the London Underground that introduced new stations and modern infrastructure to connect central London with the Docklands and east London.
• B. Cambridge line
  The Cambridge line is a key railway route in eastern England that connects London with the city of Cambridge and its surrounding area.
• C. Northern line extension to Battersea
  The Northern line extension to Battersea is a London Underground project that extended the Northern line into the Battersea area to support major regeneration and improved transport links in south-west London.
• D. Green Line southern extension
  The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
• E. The Silver Line
  The Silver Line is a UK-based helpline charity that offers information, friendship, and emotional support to older people to combat loneliness and isolation.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Dorchester Extension of the Cambridge–Dorchester subway
Target entity description: The Dorchester Extension of the Cambridge–Dorchester subway was an early 20th-century expansion of Boston’s rapid transit system that extended service south from downtown Boston into the Dorchester area.

• A. Jubilee line extension
  The Jubilee line extension is a major late-20th-century expansion of the London Underground that introduced new stations and modern infrastructure to connect central London with the Docklands and east London.
• B. Cambridge line
  The Cambridge line is a key railway route in eastern England that connects London with the city of Cambridge and its surrounding area.
• C. Northern line extension to Battersea
  The Northern line extension to Battersea is a London Underground project that extended the Northern line into the Battersea area to support major regeneration and improved transport links in south-west London.
• D. Green Line southern extension
  The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
• E. The Silver Line
  The Silver Line is a UK-based helpline charity that offers information, friendship, and emotional support to older people to combat loneliness and isolation.
• F. None of above. chosen