No names are mentioned in the given text, so it is not possible to answer the question.
No comma-separated string of personal names is present in the given text. This means that the text does not contain any names of people, either singularly or in a list. This could be because the text is not about any particular person or group of people, or because the author has chosen not to include any names in the text. It could also be because the text is a general overview of a topic, rather than a specific story about a person or group of people. In any case, the lack of personal names in the text indicates that the focus is on the topic at hand, rather than on any particular individual or group.