Premise

I used to be an issue from the 2021 UKLO titled “Mandombe”. UKLO is a linguistics olympiad, which is generally a code-breaking competitors. In this downside, we got a listing of phrases within the Mandombe script and their corresponding transliterations within the Latin alphabet. Mandombe is a script used to write down a number of languages of the Democratic Republic of the Congo.

For reference, I included the hyperlink:
https://www.uklo.org/wp-content/uploads/2022/07/2021_A1_Mandombe.pdf

The Question

I found out half 1), and checked it with the reply key. It is correct. However, I’m confused how you can do half 2)

My Progress

Based on the solutions for half 1), I doubted that decisions a), c) and d) have been appropriate. For half 1), when there have been two line segments, there was additionally a personality with a single line section. But I could not work out how you can get rid of b) or e).

The Answer

According to the reply key, the reply is e). The reply key, together with the sample is supplied on the identical pdf after the issue.

My Question

How would you determine 2)?