<glcnt ns="gloss" name="first"/>
<glsub of="first" type="a" /> The shopkeeper sells a toy dog to Alan.
<glsub of="first" /> A toy dog is sold by the shopkeeper to Alan.
<glsub of="first" /> Alan is sold a toy dog by the shopkeeper.
In all sentences in <glref name="first" /> are thematic paraphrases of each other. All contain the same agent (the shopkeeper), the same theme (a toy dog) and the same recipient (Alan). What changes are their grammatical functions (A, P, S, oblique).