Structural prepositions

Discovery Procedures
Basic versus Pragmatic Data
We return now to the observation that junction relations in basic data are in some cases recoded as nodes in pragmatic data during the process of extracting information from the information net and preparing it for use in conversation. This scenario gives rise to the following conditional that may be applied to the task of positioning components of a language model in relation to one another:
1. If a medium of expression has the property of being symbolically mixed, i.e. some forms decode as operands but others decode as operations (relations if the data is viewed statically), then one may safely assume that the medium in question draws upon and recodes data from other sources.
When (1) is applied to JG Level II (Type II if you wish) data, i.e. to syntacto-semantic junction trees, our attention is again directed toward the Ad affixes (of, by, ‘s) discussed above that decode as (refer to) adjunctive relations holding between subjects and predicates, or between verbs and objects. To cite another example, given an expression such as Fred’s purchase of the books, ‘s refers to a subject-predicate relation and of refers to a verb-object relation. Now, inasmuch as some nodes in the corresponding J-tree have reference to relations, we know that language of this ilk (the vernacular) in its observable, overt form represents a mixed medium. Where did the mix come from? 
We have postulated in this regard that basic data, i.e. non-contextualized data, is imported from sensory sources and serves in its unadulterated form as the code of preference for constructing one’s information net. Pragmatic data, on the other hand, is presumed to reside on a ‘scratch pad’ (work area) which accommodates data being organized for output. The agent in charge of these mechanisms (that’s you) would accomplish the conversion of basic data to pragmatic data, recoding some operations as operands and inserting new operations and/or operands as required to meet the constraints for well-formed junction trees and the needs of discourse.
Analysis
Returning now to the matter of specialized adjunctions and discovery procedures for detecting junction contrasts not yet recognized in the notation of JG, let us formalize the principle of analysis that has guided the foregoing discussion :
2. If semantic operations (junctors) A and B are, through a coding process, realized as operands (nodes) which contrast in their reference, then A and B are distinct operations.
Duality
There is a notable parallel between the operand~operator alternation observed when linguistic structures are ‘disturbed’ and wave~particle duality in physics. With that as a closing note, we defer discussion of its implications to another place and time.