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The  Central Pacific  laid 690 miles ( km ) of track starting in Sacramento California in  1863  and continuing over the rugged Sierra Nevada ( U.S. ) mountains at Donner Pass into the new state of Nevada .
 founded: Central Pacific, 1863
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 founded: Central Pacific, 1863