To add these dictionaries to the UIMA pipeline, follow these steps: After adding the custom dictionaries to the UIMA pipeline, you can test the new  output by analyzing a test document. See 11.3.4, “Testing the UIMA pipeline and  reviewing output” on page 416 for step-by-step instruction. Tip:  Try adding different words from your dictionary to your test text and check  the analysis results. A parsing rule defines a sequence of annotations that indicates something of  interest in the text. The Parsing Rules stage examines annotations created by  earlier stages and checks their validity. It can also add additional meaning to the  combinations of annotations. For instance, by looking for products and product  defects in a sentence, it can identify a complaint. It can similarly identify products  and positive attributes (tasty, favorite, delicious) to identify customer satisfaction. Parsing rules can: The matching criteria of a parsing rule is defined for annotations that are created  by earlier stages and can be: Preferred practice:  It is always better to use dictionaries because they are  easier to maintain and expand, and also better for performance. Do not try to  stretch a rule to make it solve every problem. Complicated rules make  maintenance difficult. It is important to keep rules short and simple. 424  IBM Watson Content Analytics: Discovering Actionable Insight from Your Content GLYPH<SM590000> Annotations that are created by another parsing rule GLYPH<SM590000> Terms that you have defined in a custom dictionary GLYPH<SM590000> Tokens such as words, punctuation, and numbers GLYPH<SM590000> Remove invalid annotations. GLYPH<SM590000> Create new annotations. 5. Save  the changes. 4. Click  OK . 3. Find the dictionaries created earlier and select them. 1. Select the  Lexical Analysis  stage. 2. In the  Dictionaries  pane, click  Select . 1. Open the  CustomerComments  annotator by selecting  FoodIndustry  Configurations   Annotators   CustomerComments  in the browser. Testing the UIMA pipeline with custom dictionaries 11.3.6 Creating parsing rules