Chao Kuo-Jung (; born August 28, 1992 in Taiwan), better known in Japan as Youko (ヨウコ ) is a member of the latest Hello! Project group Ice Creamusume. She was announced as a winner of the Taiwan Hello! Project New Star auditions on September 20, 2008 along with the other members of Ice Creamusume.
Chao Kuo-Jung was 16 when she won the Taiwan Hello! Project New Star auditions
Chao Kuo-Jung won the audition on Sep 20 2008, which would have made her 16, as she was born on Aug 28 1992. The system could likely not work out a person's age on a set date. 
( z1 age :ARG1 ( z2 person :name ( z3 name :op "Chao" :op "Kuo-Jung" ) ) :ARG2 ( z4 temporal-quantity :quant 16 :unit ( z5 year ) ) :time ( z6 win :ARG0 z2 :ARG2 ( z7 audition :mod ( z8 broadcast-program :name ( z9 name :op "Taiwan" :op "Hello" :op "!" :op "Project" :op "New" :op "Star" ) ) ) ) )