PT 29, Oct. 99, Section 3 (AR), Qn. 21 - Piano Classes Game

[NonTrad2009]

This is how I have it diagrammed:

                                                   >   O   
N/S   >   K   >   IL   >   G
                                                   >   P   H   S/N

Why is (A) the correct answer choice - "the fourth, the fifth."

I get why Gimena could be in the fourth class. But the fifth? I'm stumped.

Thanks in advance.

[Mason09]

This is how I have it diagrammed:

                                                   >   O   
N/S   >   K   >   IL   >   G
                                                   >   P   H   S/N

Why is (A) the correct answer choice - "the fourth, the fifth."

I get why Gimena could be in the fourth class. But the fifth? I'm stumped.

Thanks in advance.

I'd wait until some more experienced folks chime in but here's my guess:

Couldn't you have the following two scenarios?

N/S > K > IL > G > S/N > PHO

N/S > K > IL > S/N > G > PHO

[NonTrad2009]

You're absolutely right.

I incorrectly assumed that Oscar could not be one of the "two others" who with Pedro constitutes one class, since the condition re. Oscar's placement was stated separately from that of Pedro's.

Thanks so much!