If you know that Person 6 has a perfect score, you can calculate each person's score using the graph and performance review below. If you know that Person 3 has both good communication skills and job knowledge, Person 4 has fair communication skills, and Person 5 is utterly clueless about their job such that their productivity is poor, then who must the performance review belong to?   

Total number of points per employee ||||| Person 3 Person 4 Person 1 Person 2 Category Ratings EVALUATION CATEGORIES General Quality of Work Dependability Job Knowledge Communication Skills Personality Management Ability Contribution to Group Person 5 RATING 4 4 4 4 Person 6 3 Rating Scale SCORE DESCRIPTION 5 4 3 2 1 Excellent Very Good Good Fair Poor