A common example of this phenomenon is alliteration in poetry: “The faint fresh flame of the young year flushes from leaf to flower and flower to fruit.” In this line, there is presumably a thematic controlling variable that strengthens such responses as “new,” “beginning,” “fresh,” etc.
A type of stimulus control with the following features:
The response form is multiply controlled
At least one of the controlling variables strengthens only one part of the response form
Which types of elementary verbal relationships are involved
The response topography
From Chorus by Algernon Charles Swinburne