maven 添加stanford nlp 用于句子分离和pos标签解析

<dependency>
   <groupId>edu.stanford.nlp</groupId>
   <artifactId>stanford-corenlp</artifactId>
   <version>4.4.0</version>
</dependency>
<dependency>
   <groupId>edu.stanford.nlp</groupId>
   <artifactId>stanford-corenlp</artifactId>
   <version>4.4.0</version>
   <classifier>models</classifier>
</dependency>

如果不引入models， 当使用pos 解析tag的时候会报错误: "Unable to open "edu/stanford/nlp/models/pos-tagger/english-left3words-distsim.tagger" as class path, filename or URL"