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I just brought her little brother William in , and as William and she saw each other , it was such a wonderful reunion for them to just hug , and he would hug her and look at her and hug her and look at her , and could n't believe , I think , as a 4 - year - old now that his sister is home .
 person: William; person: William; date: 4 - year - old
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:
 person: William; person: William; date: 4 - year - old