Problem:IOL/2015/i5/en(A)

IOL 2015 Problem #5 Somali Masafo
Here are 25 half-lines of Somali poetry written in a meter known as masafo:

To help you understand the structure of masafo, here are 10 half-lines which were constructed from genuine masafo half-lines by random rearrangement of words within the halfline. Some of them might conform to the rules of the versification, but the majority do not:

(a) Describe the structure of a masafo half-line.

'''(b) Here are 10 more masafo half-lines. Five of them are genuine, and five are obtained by random rearrangement. Which is which?

—Alexander Piperski