CriterionExplicit laffCollective laff
Initial mentionMembers enumeratedGroup under one expression
Source exampleNight and dayThey said
What followsDistinct associated purposesDistinct parties’ claims
These examples illustrate the central contrast, not an absolute rule that explicit laff only has qualities or collective laff only has speech. Either may lead to distinct predicates: the defining distinction is how the members were originally gathered.
Thus ordered/unordered and explicit/collective answer different questions: the former concerns sequence, the latter the form of initial mention.