如何从多个类别中搜索和替换python中的字符串中的关键字？

Question

假设我有一个字符串，其中包含：

'''
Looking closely we find Pepsi and Coca-cola have been the two two biggest brands of soda in the world for the past four years.
'''

我希望将单词的映射表示为其类：

classes={"NAME":["pepsi","coca-cola", "james","jill"...],"CATEGORY":["soda","food","automobile"....],"NUMBER":["one","two","three","four"....]}

所以最后我想把原始字符串作为：

Looking closely we find NAME and NAME have been the two biggest brands of CATEGORY in the world for the past NUMBER years

对于一个简单的词典，如：

rep = {"NAME": "pepsi", "CATEGORY": "soda"....}

我可以替换上面dict中的单词，但如果每个键有多个单词，我该怎么做呢？

这是我到目前为止所做的：

stringh=sentence.lower()

for i,j in rep.items():
    stringh = stringh.replace(j, i)

print stringh

Answer 1

遍历列表

stringh=sentence.lower()

for i,j in rep.items():
    for k in j:
        stringh = stringh.replace(k, i)

print stringh