7585
Today , Jian Song said to hundreds of high - tech experts representatives and science and technology officials attending the meeting : " The series of achievements we have made in the development and industrialization of high - tech help us to further overcome timid thoughts that high - tech is unattainable .
 date: Today; person: Jian Song; cardinal: hundreds
Please list all entity words in the text that fit the category.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} 
Answer:
 date: Today; person: Jian Song; cardinal: hundreds