deletes the subPropertyOf axiom of of the data property 'number of attendees' (AEON:0000159) and relaxes its domain to 'organized sociocultural event' (AEON:0000196), as this metric is not limited to academic events.
it restricts the domain of the subproperties of the dataproperty 'academic event metric value' (AEON:0000158) to be 'academic event metric' (AEON:0000223) and restricts their range to be xsd:integer where applicable
This PR does the follwoing: