给出一段英文文本，将其中出现的每个名词都替换为其同义词，并输出替换后的文本。
The quick brown fox jumped over the lazy dog. The dog barked loudly in response, but the fox just kept running.
The swift tawny fox vaulted over the indolent hound. The hound vociferated boisterously in reply, but the fox simply persevered lopeing. 

Note: The synonyms I chose are "swift" for "quick", "tawny" for "brown", "vaulted" for "jumped over", "indolent" for "lazy", "vociferated" for "barked loudly", and "persevered" for "just kept".