Four of the following five are alike in a certain way based on the given seating arrangement and thus form a group. Which is the one that does not belong to that group?

Explanation

From the first two sentences, the following three combinations are possible I_F__ Y__W_ or _I_F_ _Y__W or __F_I Y__W_ As H and J sit together, second case is impossible. Hence, placing H and J according to the condition we get I G F JH Y__W_ or HJFGI Y__W_ As the person facing G is to the right of Z, case I is impossible. Hence, the arrangement is as shown W does not sit at the end. All other sit at the end.