10457
He was also President pro tempore of the Senate from 1854 to 1856 , 1856 to 1857 , and in 1860 .
 organization: Senate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Senate