Prime number analogs in sketchbook project

I'm finding a greater and greater appreciation for the function of semantic
radicals and indivisible units of meaning as I work in this project.  I have,
BTW, reached a previous goal of defining lying in the language, and
consequentially come to you all looking for a new goal word to work towards,
something rather difficult to express in simple terms.
In case anyone's interested, Here's a breakdown of the first sentence I've
used with the word "tukel" (to lie) in it:

stele spen tukel tel
swim birds lie he
He lies that [a] bird [is] swim[ming].

which, broken down to only the roots used in the definitions of these words,
is

[isku tan] gan spen [pe osti isku so loki kil] [ma ete eski]
contain fish move bird not brain contain and sound mouth that male person.

There is no reason that the two sentences should differ in meaning, other
than the fact that the definition of some words (e.g. dola - water = contains
fish) refer only to limited aspects of a concept.  Here's another example of
a sentence and its definition:

lo oma de
I see you

or, more precisely:

kelu eski obi ne eski ne kelu
speak person eye get person get speech
the speaking person's eye perceives the person being spoken to.

very cumbersome.  here's a list of several definitions of non-radical words
in the sketchbook:

linu - (solid ground, land, anything solid that can be moved over)
        pa eski
        at person (person is at it)
nul - (walk, travel on land)
        linu pa gan
        land at move
stele - (swim in water, on water, float, move in a liquid medium)
        dola pa gan
        water at move

Anyway, back to my dilemma: what word should I shoot for now that I've
already derived "lie"?  any interesting advice is welcome, as always.
Joe Mondello