10859
The Romans , experts at close-quarter combat , and supported by arrows and bolts from the walls and towers checked the assault and a sortie from one of the gates forced the Persians to withdraw .
 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