Given the question: Read the bio below and try to give details on istván jónyer 's:    - name       - fullname     Bio: istván jónyer -lrb- born 4 august 1950 in miskolc -rrb- is a male former table tennis player from hungary , who was one of the most dominant players of the sport in the 1970s . he is famous for inventing the sidespin loop shot . from 1968 to 1983 he won several medals in singles , doubles , and team events in the world table tennis championships and in the table tennis european championships . he is a 4-time world champion and 4-time european champion .
The answer is:
- name is istván jónyer- fullname is jónyer , istván