The head is the central constituent of the domain, and acts as the point of orientation for the other constituents (dependents, relators, operators) in the domain. The heads of the different domains are the following:
(7) ‘Domain’ ‘Head’
clause main predicate (typically V)
term phrase first restrictor (typically N)
adjectival phrase adjective (A)
[…]. - Dik (1989), a pag.338