5933
The building , comprising a central block with flanking wings , measured overall approximately 37m east-west by 11m north-south , and sat on the south side of a bivallate earthwork enclosure measuring approximately 75m square .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None