question: Who purchased the tramway in 1871
answer: In 1871 the tramway was purchased by the Somerset and Dorset Joint Railway ( S&DJR ) , and operated until the 1950s
turker_answer: In 1871 , the tramway was purchased by the Somerset and Dorset Joint Railway ( S&DJR ) , and operated until the 1950s .
rule-based: In 1871 the tramway was purchased by the Somerset and Dorset Joint Railway ( S&DJR ) , and operated until the 1950s purchased the tramway in 1871