code: func (d *Parser) Run() {
  	defer close(d.Output)
  	for sentence := range d.Input {
  		dep, err := d.predict(sentence)
  
  		if err != nil {
  			d.Error <- err
  			return
  		}
  		d.Output <- dep
  	}
  	return
  }
docs: // Run is used when using the NN to parse a sentence. For training, see Train()