birth_place article_title strokes name
south korea yang jung-doo
 freestyle jungdoo yang
yang jung-doo

jungdoo yang -lrb- born 1991 -rrb- is a south korean swimmer .
on august 2 , 2013 , at the 2013 world aquatics championships in the men 's 50 metre freestyle event , jungdoo yang swam in the time of 22.48 to set the south korean record .
