17445
Compared with huge annual surpluses of more than 100 million ounces in the first half of the 1980s , world silver supplies and consumption are now nearly in balance , Mr. Demler says .
 date: annual; quantity: more than 100 million ounces; date: the first half of the 1980s; person: Demler
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: annual, more than 100 million ounces, the first half of the 1980s, Demler 
Answer:
 date: annual; quantity: more than 100 million ounces; date: the first half of the 1980s; person: Demler