Following the logic summarized in Table 1, simultaneous support of Hypotheses 2 and 2a is consistent with a communicative role, while support for Hypothesis 2 alone is supportive of a ceremonial role. Support of Hypothesis 2a without support for Hypothesis 2 is supportive of neither role. A failure to support Hypotheses 2 or 2a suggests that these are not relevant cues. Similar logic applies to Hypotheses 3 and 3a