问题：
What is componential analysis?
答案：
Componential analysis, proposed by structural semanticists, is a way to analyze word meaning. The approach is based on the belief that the meaning of a word can be divided into meaning components, which are called semantic features. Plus and minus signs are used to indicate whether a certain semantic feature is present or absent in the meaning of a word, and these feature symbols are usually written in capitalized letters. For example, the word “ man ” is analyzed as consisting of the semantic features of [+ HUMAN, + ADULT, + ANIMATE, +MALE]