Given the question: What type of details about ziv kalontarov can be gathered from the following bio? Bio: ziv kalontarov -lrb- also '' kalontorov '' , '' kaluntarov '' , and '' kalntrov '' ; ; born 15 january 1997 -rrb- is an israeli swimmer and the reigning european games champion in the 50 m freestyle . in april 2015 , kalontarov won the international school sport federation -lrb- isf -rrb- swimming world schools championship in both the 50 m freestyle -lrb- in 22.39 -rrb- and the 100 m freestyle -lrb- in 50.49 -rrb- in poznan , poland . at the age of 18 representing israel at the 2015 european games in baku , azerbaijan , he won a gold medal with a european games record time of 22.16 in the 50 m freestyle and thereby won the european junior swimming championships , on 27 june 2015 . his time in the final established a new senior israeli national swimming record in the 50 m freestyle . it qualified him to represent israel at the 2016 summer olympics in rio de janeiro , brazil .
The answer is:
- nicknames - weight - strokes - name - coach - nationality