How would you express this in EVA?

[Stephen Carlson]

To me, the four s/r glyphs form a continuum from c-with tail to minim-with tail, in the order 1, 3, 2, 4. 
The first circle is clearly "o". The second is clearly EVA-a built from an i-minim. The second one is built like an o, but it connects at the bottom.

This continuum-nature of the script bothers me, since the functional load of the glyphs for discriminating between otherwise valid vords seems to be rather high.