Delicacy is a 'type to sub-type' relation (hyponymy). In terms of logical semantic relations, this is elaboration. For example, delicacy is the relation between 'academic' and 'lecturer'; 'lecturer' is a sub-type of the more general type 'academic'.
Instantiation is 'token to type' relation. This is a class membership relation of intensive attribution, which thus combines elaboration with ascription; (the relation between token and type is thus the relation between Carrier and Attribute). For example, instantiation is the relation between a token, such as 'Peter White', and the type 'academic' (or its sub-type 'lecturer').
In terms of the theoretical architecture of SFL theory, delicacy is a dimension of the system, whereas the dimension of instantiation relates two perspectives on language: the system to an instance of the system.
In terms of the theoretical architecture of SFL theory, delicacy is a dimension of the system, whereas the dimension of instantiation relates two perspectives on language: the system to an instance of the system.
