Here, we limited 77 outputs judged as good similar instances in evaluation of the process of retrieving similar instance, because we evaluate specifically the parts of phrase alignment and combination.
the examinee categorized them based on how proper the output summary is to the input news article: 1) quite proper 2) slightly proper 3) not very proper 4) not proper of judgment, 48 outputs out of 77 are evaluated either 1) quite proper or 2) slightly proper.