Existing Wording: [for Mixed expressions] This is useful for communicating to environments that may support the computation, but may need the semantics communicated via natural language.

Proposed Wording: This information is useful for communicating to environments that may support the computation as well as to environments that do not, or to environments that support the computation but desire human-readable information to more easily understand the logic.

Comment:

Suggest clarifying the need for mixed expressions along the lines of the suggested text.

Summary:

Suggest clarifying the need for mixed expressions along the lines of the suggested text.