20248
In order to bring its locational advantage into full play , and to further accelerate opening to the outside world , since the latter half of last year , the Hulun Buir League has carefully summarized problems and inadequacies in its opening up to the outside world and has been vigorously developing the activity of " creating a favorable environment for opening up " .
 date: the latter half of last year; geographical social political: the Hulun Buir League
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 latter half of last year, the Hulun Buir League 
Answer:
 date: the latter half of last year; geographical social political: the Hulun Buir League