In a speculative decoding process, the sequence of confirmed tokens before a specific step is ['The', 'quick', 'brown', 'fox']. After this single step completes, the new confirmed sequence is ['The', 'quick', 'brown', 'fox', 'jumps', 'over', 'the']. Given this outcome, which of the following represents the set of accepted draft tokens, denoted as ${\hat{y}_{i+1}, ..., \hat{y}_{i+n_a}}$?

A text generation process begins with the confirmed sequence ['The', 'quick', 'brown']. After a single generation step, the new confirmed sequence is ['The', 'quick', 'brown', 'fox', 'jumps', 'over']. Based on this, evaluate the following statement: 'The set of accepted draft tokens, represented as ${\hat{y}_{i+1}, ..., \hat{y}_{i+n_a}}$, for this step is ['fox', 'jumps', 'over'].'

Set of Tokens Generated in a Single Speculative Decoding Step