On the other hand, thematic roles are the same in sentence that are paraphrases, as illustrated in (49) and (50). (49) a. The cat scratched the dog. b. The dog was scratched by the cat. (50) a. John sent Mary a letter. b. John sent a letter to Mary.
On the other hand, thematic roles are the same in sentence that are paraphrases, as illustrated in (49) and (50). (49) a. The cat scratched the dog. b. The dog was scratched by the cat. (50) a. John sent Mary a letter. b. John sent a letter to Mary.