For the first task, the human raters are asked to evaluate these outputs on the first three aspects, relevance, attractiveness, and language fluency on a Likert scale from 1 to 10 (integer values). For attractiveness, annotators are asked how attractive the headlines are. 
 Question: How is attraction score measured?
annotators are asked how attractive the headlines are Likert scale from 1 to 10 (integer values)