你需要一个语法句子引擎：

"io voglio andare a casa"

io, sostantivo
volere, verbo
andare, verbo
a, preposizione semplice
casa, oggetto

当你标记了这个句子，你就可以教opennlp了。
在hadoop上创建自定义Map

public class Map extends Mapper<longwritable,
                            intwritable="" text,=""> {  

           private final static IntWritable one =
                           new IntWritable(1);  
          private Text word = new Text();    

          @Override  public void map(LongWritable key, Text value,
                      Context context)
      throws IOException, InterruptedException {

            //your code here
       } 
  }

在hadoop上创建自定义reduce

public class Reduce extends Reducer<text,
              intwritable,="" intwritable="" text,=""> {
 @Override
 protected void reduce(
   Text key,
   java.lang.Iterable<intwritable> values,
   org.apache.hadoop.mapreduce.Reducer<text,
           intwritable,="" intwritable="" text,="">.Context context)
   throws IOException, InterruptedException {
       // your reduce here
 }
}

配置两者

public static void main(String[] args)
                      throws Exception {
  Configuration conf = new Configuration();

  Job job = new Job(conf, "opennlp");
  job.setJarByClass(CustomOpenNLP.class);

  job.setOutputKeyClass(Text.class);
  job.setOutputValueClass(IntWritable.class);

  job.setMapperClass(Map.class);
  job.setReducerClass(Reduce.class);

  job.setInputFormatClass(TextInputFormat.class);
  job.setOutputFormatClass(TextOutputFormat.class);

  FileInputFormat.addInputPath(job, new Path(args[0]));
  FileOutputFormat.setOutputPath(job, new Path(args[1]));

  job.waitForCompletion(true);
}