Generate a correct and concise answer for the question based on the words in the context.
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Question: Context : The Winter Hill air disaster occurred on 27 February 1958 when the Silver City Airways Bristol 170 Freighter G-AICS, travelling from the Isle of Man to Manchester, England, crashed into Winter Hill (also known as Rivington Moor) several hundred yards away from the Independent Television Authority's Winter Hill transmitting station.
Question : The point in time of Winter Hill air disaster was when?

Answer: 27 February 1958

Question: Context : The GCR Class 1 was a class of steam locomotives designed by John G. Robinson for the Great Central Railway, and introduced to service between December 1912 and 1913.
Question : What was the year that GCR Class 1 entered service?

Answer: December 1912

Question: Context : Bay Networks was acquired by Northern Telecom in June 1998 for $9.1 billion, broadening Nortel's reach from its traditional carrier customer base into enterprise data networking.
Question : What company is Bay Networks part of?

Answer:
Nortel