给定一段英文文本和一个关键词，将文本中与关键词相关的句子提取出来。
原始文本："Natural language processing is a field of study focused on making sense of human language. It involves everything from speech recognition to text analysis to machine translation. One particularly important aspect of NLP is named entity recognition, which refers to identifying important pieces of information within a body of text, such as names and dates."
关键词："NLP"
包含关键词"NLP"的句子有：
- "Natural language processing is a field of study focused on making sense of human language."
- "One particularly important aspect of NLP is named entity recognition, which refers to identifying important pieces of information within a body of text, such as names and dates."