question: public void tag ( List < String > sentences , String outputFileName , OutputFormat outputFormat ) { List < Row > rows = new LinkedList < Row > ( ) ; for ( String sentence : sentences ) { rows . add ( RowFactory . create ( sentence ) ) ; } StructType schema = new StructType ( new StructField [ ] { new StructField ( "sentence" , DataTypes . StringType , false , Metadata . empty ( ) ) } ) ; SQLContext sqlContext = new SQLContext ( jsc ) ; DataFrame input = sqlContext . createDataFrame ( rows , schema ) ; tag ( input , outputFileName , outputFormat ) ; }
target:  Tags a list of sequences and writes the result to an output file with a desired output format.