10591
The clock itself , however , was dismantled by the invading Jurchen army in 1127 AD , and although attempts were made to reassemble it , the tower was never successfully reinstated .
 None
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:
 None