Three Considerations

E(u) ⊇ T(w) ⊇ E(t) 

In its 1st consideration, an occasion is composed as the entity (of its use channel input) limiting the translation (of its word channel input) limiting the entity (of its thing channel input).

 sign(v) ≡ E(u) ⊇ T(w) ⊇ E(t)

In its 2nd consideration, the sign (of its variety channel input) represents the occasion composed as the entity (of its use channel input) limiting the translation (of its word channel input) limiting the entity (of its thing channel input).

 D(y) ⊇ T(w) ⊆ P(z) ⊇ A(x) 

In its 3rd consideration, an occasion is composed as the description (of its object channel input) limiting the translation (of its word channel input) limited by the process (of its source channel input) limiting the ascription (of its subject channel input).