Q:What type of details about robyn thorn can be gathered from the following bio? Bio: robyn jean thorn -lrb- born 26 november 1945 -rrb- , also known by her married name robyn nock , is an australian former freestyle swimmer who won the silver medal in the 4x100m freestyle relay at the 1964 summer olympics in tokyo . coming from kingaroy , queensland , thorn spent the majority of her career in the shadow of fellow australian dawn fraser . making her debut in the 1962 commonwealth games in perth , western australia , thorn was part of the winning 4x110-yard freestyle relay team , and won silver in the corresponding individual event behind fraser . two years later in tokyo , thorn was a semifinalist in the 100-metre freestyle , won by fraser . she combined with fraser , lyn bell and janice murphy to finish second , 3.1 seconds behind the united states .
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