An AI-generated paragraph is divided into 4 distinct sentences for a more detailed evaluation. If the complete set of these sentences is represented as ${\bar{\mathbf{y}}_1, \bar{\mathbf{y}}_2, \bar{\mathbf{y}}_3, \bar{\mathbf{y}}_4}$, what does the term $\bar{\mathbf{y}}_2$ specifically denote in this context?

Applying Segment Notation

In the context of evaluating a generated output that has been divided into parts, the notation ${\bar{\mathbf{y}}_1, \dots, \bar{\mathbf{y}}_{n_s}}$ is used to represent the collection of these parts. The term $n_s$ in this notation represents the total number of tokens in the entire output.