给定一段英文文本，从中提取出所有的人名和地名。
"Some possible locations to visit in Paris include the Eiffel Tower, the Louvre Museum, and the Champs-Élysées. John Smith and Mary Johnson went to all these places during their visit."
人名：John Smith, Mary Johnson
地名：Paris, Eiffel Tower, Louvre Museum, Champs-Élysées