给出一段文字，要求GPT模型从中提取出所有以大写字母开头的词汇。


“Natural language processing (NLP) is a field of computer science, artificial intelligence, and computational linguistics concerned with the interactions between computers and human (natural) languages."
Natural, Language, Processing, NLP, field, Computer, Science, Artificial, Intelligence, Computational, Linguistics, Interactions, Computers, Human, Natural, Languages.