Question: What type of details about guo zhengxin can be gathered from the following bio? Bio: guo zhengxin -lrb- , born august 1 , 1979 -rrb- is a chinese former figure skater who competed in men 's singles . he finished 8th at the 1998 winter olympics and 7th at the world figure skating championships the following year . he was the first skater to land two quadruple toe loops in the free skate .
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- height - country - birth date - name - formercoach - birth place