23013
As a result , when the flood season comes , the rising waters of the Yangtze River invade inland , and has made the lower reaches of the Longkai River an intense battlefield over the years against flooding .
 location: the Yangtze River; location: the Longkai River
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
 Entities: the Yangtze River, the Longkai River 
Answer:
 location: the Yangtze River; location: the Longkai River