你好,我有点不理解数据中的from和to代表着什么呢?希望可以得到解答。谢谢 例如: <text>When I got home, there was a message on the machine because the owner realized that our waitress forgot to charge us for our wine.</text> <aspectTerms> <aspectTerm from="64" polarity="neutral" term="owner" to="69"/> <aspectTerm from="88" polarity="negative" term="waitress" to="96"/> <aspectTerm from="125" polarity="neutral" term="wine" to="129"/> </aspectTerms>