Statements:
Solution statement: Argument clarifying the nature of the solution required
Action proposal: Where the text is structured as a proposal or recommendation
Substantive comment: on the substantive issues
Procedural comment: on the procedural and organization issues
Denials: Statements by which participants deny messages falsely attributed to them (a response to the issue of author IDs in the absence of verification)
Miscellaneous / Uncodable / None of the above
Responses/Reactions to Other Statements:
Opposition: Statement in opposition to some other message
Reference only: Where a citation is neither in support of in opposition to a previous message, but simply makes reference to it
Irrelevance: Indication that a reference to it made by another message is irrelevant (to be made notably by a working group endeavouring to distinguish what it is focusing on from a clutter of other issues on peripheral topics)
Structuring of Pattern of Statements:
Articulation: Statement amplifying or elaborating some aspect of a previous message (namely the exploration of detail)