Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What round is sf/sg player sly williams from a year after 1965 from?

### Inputs:
table_name: table, columns: ['Year', 'Round', 'Player', 'Nationality', 'Position', 'College/High School/Club']

### Response:
SELECT Round FROM table WHERE Position = sf/sg AND Year > 1965 AND Player = sly williams