Query Morphing Example 2

In experience-based distance learning, learning-by-doing becomes very important. Information obtained from case studies and work experiences need to be fused into the knowledge base and made available to the learner. Fusion of information is thus required. The original query is rewritten as the fusion of several media-specific queries, each reformulated according to the characteristics of the respective media. This is an example of a substantial query transformation for non-incremental query morphing.
 
Morphed query:
Select object
From case_studies
Where object.topic = “binary tree”
or 
Select object
From life_experiences
Where object.topic = “binary tree”